9 Best Faraday Bags [2026] for EMPs, RFID & Privacy Protection
Faraday bags block signals to your phone, car fob, and electronics — useful for privacy, travel, or just paranoia. After testing a dozen, here are the ones that actually work.
Looking for a way to protect your electronic devices from hackers and grid-down chaos?
Let’s face it, electronics are everywhere. We use them to work, communicate, navigate, and waste time on the internet pretending to be productive. If you’re reading this, odds are you’re staring at a screen powered by tiny processors and delicate circuit boards, all humming away behind the scenes. It’s easy to forget how much of our modern lives depend on these fragile little machines.
On one hand, they’re magnets for cyber threats, data breaches, and surveillance. On the other, they’re prone to failure from physical damage, electromagnetic pulses (EMPs), and good old-fashioned bad luck.
Whether it’s a hacker sniffing around your data or a solar flare frying your gear, the risks are real – and no, tinfoil hats won’t save you.
A solid first line of defense against both threats is a well-built Faraday bag.
Choosing the right Faraday bag can feel like navigating a maze of marketing hype, questionable specs, and overpriced pouches. There’s tons of options out there, but how do you know what the best Faraday bags are?
Which ones will actually work when the SHTF (Shit Hits the Fan)? Are there any budget options that don’t suck?
We went out and tested some of the best options on the market and curated this list of top picks to help you cut through the noise. We’ll break down what actually matters – signal blocking performance, durability, price, and capacity – so you’re not left guessing.
By the end, you’ll have a solid overview of your options and the information you need to pick the Faraday bag that actually does what it’s supposed to: protect your gear when SHTF.
Best Faraday Bags
Our top picks. Jump straight to a product review or open the full retailer list.
1. BEST OVERALL: Mission Darkness Non-Window Faraday Bag
Mission Darkness Non-Window Faraday Bag
Mission Darkness is one of the best in the biz when it comes to Faraday products. Their products are mostly made in the USA and they do a lot of government contracts.
Mission Darkness is one of the best in the biz when it comes to Faraday products. Their products are mostly made in the USA and they do a lot of government contracts.
The Non‑Window Faraday Bag is purpose‑built for tablets and other medium‑sized electronics. It’s lined with two layers of TitanRF Faraday fabric and wrapped in water‑resistant ballistic nylon, creating a signal‑eating cocoon that blocks Wi‑Fi, Bluetooth, cellular (including 5G), GPS, RFID and other radio frequencies all the way up to 40 GHz
What We Like: First and foremost, this thing works. This is a professional‑grade Faraday bag that doesn’t cut corners. The dual TitanRF layers are lab‑tested to military and IEEE standards and will shrug off even high‑power signals.
We appreciate how the double‑roll closure with Velcro makes a near‑hermetic seal; you feel the air squeeze out as you close it. The water‑resistant ballistic nylon shell feels like something you’d see on tactical gear, not a consumer gadget accessory.
Inside, there’s enough room for an iPad, Kindle or a cluster of phones, and the large opening (13 × 9.5 inches inside) makes it easy to slip devices in without snagging. Mission Darkness even adds strap loops at the top and a unique serial number for asset tracking.
Beyond the hardware, the use cases are spot on. If you need to prevent a seized tablet from being remotely wiped, this is the bag forensic teams should trust.
Travelers carrying sensitive data can drop their tablet in and know no one is skimming them. Preppers and privacy buffs will appreciate that it blocks everything from NFC taps to car‑key fob signals. And that Velcro ID window means you can label the bag for quick identification without ever opening it.
A big selling point to us was that it’s Berry Compliant, which means that all the materials and manufacturing are done in the USA. This is a requirement if you’re sourcing gear for government contracts, military use, or just want to support American-made products built to exacting standards.
For many folks, this is the perfect everyday-carry size if you’re building a go-bag or off-grid travel setup.
Flaws but Not Dealbreakers: Like all true Faraday bags, it’s an all‑or‑nothing affair—once your device is inside, you can’t see or use it. There’s no clear window to check notifications, and the roll‑down closure takes a few seconds longer to undo than a zipper.
The Faraday fabric shouldn’t get wet or punctured, so this isn’t the bag to stuff with your EDC knife or toss a dripping phone into after a rainstorm. At roughly 17 × 10 inches open and 13 ounces, it’s portable but not pocket‑sized; you’ll need a backpack or range bag.
And while the price reflects the materials and testing, budget‑minded users may balk when cheaper (and less effective) pouches exist.
Bottom Line: If you’re serious about signal isolation—for forensic evidence, secure travel or personal privacy—the Mission Darkness Non‑Window Faraday Bag delivers professional‑grade performance in a package that’s still manageable for everyday use. The dual‑layer TitanRF shielding, rugged construction and thoughtful touches like the ID pocket and serial number set it apart from generic Faraday pouches. It isn’t meant for quick phone access or casual EDC, but for anyone who needs to keep a tablet or a handful of phones completely dark, it’s the bag we’d trust.
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2. BEST FOR EDC: Go Dark Faraday Bag
Go Dark Faraday Bag
Go Dark is another one of the best brands on the market for faraday products. Aesthetically, their lineup is some of the best looking gear on the market. Match that with a super functional product and you have the ultimate everyday carry Faraday bag.
Go Dark is another one of the best brands on the market for faraday products. Aesthetically, their lineup is some of the best looking gear on the market. Match that with a super functional product and you have the ultimate everyday carry Faraday bag.
In the past their products were made with an elastic band that stretched around a tab to keep things tight. They’ve since upgraded that with their MAS Series to include a latching buckle if you need things more secure.
What We Like: We like the Go Dark Faraday Bag for Phones because it’s a great design for daily use, easy to open and seal, and it actually works—blocking all the usual culprits: cell signals, GPS, Wi-Fi, Bluetooth, RFID.
GoDark nailed the balance between protection and convenience. The outer shell is made from a water-resistant, ballistic nylon that’s built for real-world abuse, while the internal layers provide full-spectrum signal shielding. It’s an easy piece of gear you can just toss into your bag, glove box, or cargo pocket and forget—until you need it.
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We particularly like the elastic closure band. You don’t have to filled with snaps, zippers, or Velcro. You just fold the top, stretch the band over, and your device is locked down tight. When we tested it, it was fast, secure, and didn’t open up accidentally, even if we were moving quickly or one-handed. This is exactly what you want for EDC: gear that works smoothly without making you think too hard.
GoDark’s clean, low-profile design also means it doesn’t scream “tactical.” It blends in easily with office bags, laptop cases, or travel gear—perfect if you’re trying to keep a low profile while still taking your digital security seriously. And the size options are perfect for phones, tablets, GPS units, and other daily essentials.
Flaws but Not Dealbreakers: The starting price for a phone bag is about $50. It goes up from there. This isn’t a cheap bag on Amazon though, it’s well worth the money.
You won’t find extra bells and whistles like MOLLE webbing, D-rings, or built-in organizers here. GoDark keeps it minimalist, which works for EDC but might disappoint those who want more modularity. If that’s the case, you may want to look at their Crossbody or Utility bags.
While the elastic strap is easy and intuitive, it’s not a universal favorite—some people still prefer a classic Velcro flap or zipper for peace of mind.
Also worth noting: these bags don’t carry a “Made in the USA” label, which may be a factor for some buyers. That said, the construction quality and durability speak for themselves.
Bottom Line: For everyday carry, the GoDark Faraday Bag hits the mark. It’s compact, rugged, fast to use, and trusted by professionals across the board—from federal agents to digital nomads. If you want a daily-use Faraday bag that doesn’t get in the way but still gives you real peace of mind, this is the one to grab. Silent protection, zero drama.
3. BEST BUDGET-FRIENDLY PICK: Simket Faraday Bags for Phones and Car Keys (2-Pack)
Simket Faraday Bags for Phones and Car Keys (2-Pack)
Not everyone wants to drop big money on signal-blocking gear, and that’s fair—especially when you just need something simple to keep your phone or key fob shielded from unwanted access. That’s why we like the Simket Faraday Bag 2-Pack. It’s affordable, effective, and compact enough to stash in a glovebox, pocket, or desk drawer.
Not everyone wants to drop big money on signal-blocking gear, and that’s fair—especially when you just need something simple to keep your phone or key fob shielded from unwanted access. That’s why we like the Simket Faraday Bag 2-Pack. It’s affordable, effective, and compact enough to stash in a glovebox, pocket, or desk drawer.
If you’re new to the Faraday world or just want some lightweight peace of mind, these bags do the job without draining your wallet.
What We Like: The best thing about the Simket bags is that they actually work—and for the price, that’s no small win. Slide your phone or key fob inside, seal the flap, and boom—signal gone. Calls don’t go through, Bluetooth won’t connect, and GPS is blocked. It’s a solid little shield for everyday privacy or keyless entry protection.
Ours came with two pouches, so you can keep one in your car and one in your bag or pass one along to someone else. The size fits most standard smartphones and car keys, and the interior signal-blocking layer does its job well when sealed correctly.
The construction is lightweight but not flimsy, and the magnetic closure is a nice touch—clean, easy, and effective. For something this budget-friendly, you’re getting real utility without the usual “you get what you pay for” disappointment.
Flaws but Not Dealbreakers: The material isn’t heavy-duty, and after a lot of use, you may see some fraying at the edges or wear at the corners. This isn’t premium gear, and it’s not pretending to be.
It’s also not designed for rugged EDC or high-threat environments—think casual daily use, not tactical ops.
There’s also no waterproofing or extra padding, so you’ll want to be careful if you’re carrying expensive devices or tossing it into rough environments. And while the bags are rated for phones, oversized or bulky cases might not fit comfortably inside.
Bottom Line: For basic signal-blocking on a budget, the Simket Faraday Bags deliver more than expected. They’re easy to use, actually block signals, and come in a two-pack so you get more bang for your buck. If you’re looking for entry-level protection for your phone or key fob—or just want a low-cost way to add some digital privacy to your daily carry—this is a smart, affordable pick. Simple, functional, and cheap enough to grab without overthinking it.
4. BEST FOR LAPTOPS: GoDark Faraday Laptop Sleeve
GoDark Faraday Laptop Sleeve
Our laptops are basically portable command centers. They carry work documents, personal photos, financial records, and in some cases, half your digital life. So when it comes to shielding all that from wireless snoops, signal leakage, or an unexpected EMP event, shoving your laptop in a padded backpack and calling it a day just doesn’t cut it.
Our laptops are basically portable command centers. They carry work documents, personal photos, financial records, and in some cases, half your digital life. So when it comes to shielding all that from wireless snoops, signal leakage, or an unexpected EMP event, shoving your laptop in a padded backpack and calling it a day just doesn’t cut it.
The GoDark Laptop Sleeve is ideally for people who care about digital security—or at least want to pretend they’re in a Jason Bourne movie while heading through airport security. It’s not trying to be stylish or flashy. It’s trying to block every signal your device can emit or receive, and it actually does it without making your gear look like it’s wrapped in tinfoil.
What We Like: First off, the GoDark sleeve actually looks like a laptop case you’d want to carry—not some tactical pouch you’d be embarrassed to pull out in a coffee shop. I’ve said it before, but GoDark has some of the sleekest bags on the market.
Functionally, it delivers across the board. The signal-blocking performance is top-tier—cellular, WiFi, GPS, Bluetooth, RFID, EMF, EMP… if it can send or receive, this thing shuts it down cold.
The outer shell is water-resistant and rugged, so you’re not just getting digital protection—you’re getting a sleeve that can take some bumps and spills along the way. It fits laptops up to 16″, which covers most modern workhorses, and the interior is soft-lined to protect your screen from scratches.
And the roll-top design with the magnetic closure is both secure and smooth to use. It includes Velcro straps for added protection.
Flaws but Not Dealbreakers: This isn’t the lightest or most compact sleeve on the market, especially compared to traditional laptop bags. That’s the tradeoff when you’re packing this much shielding into one product. It adds some bulk—but you’re getting military-grade protection in return.
At around $125, it’s also on the pricier side, which may give casual users pause. But considering what’s inside—multiple layers of signal-blocking and a reinforced outer shell—it’s a fair price for the peace of mind it provides.
And while it works great as a standalone sleeve, it’s not a full-on laptop bag. There are no straps, pouches, or accessory compartments, so you’ll need to pair it with a larger bag if you’re carrying extra gear.
Bottom Line: The GoDark Faraday Sleeve is the real deal for anyone who needs serious privacy and signal protection for their portable devices. Whether you’re shielding sensitive files, traveling overseas, or just don’t trust the WiFi at your local café, this sleeve has you covered.
Overall, it’s the best option for protecting your laptop.
5. BEST FOR TRAVEL AND COMMUTING: Faraday Defense Corp 17L Backpack
Faraday Defense Corp 17L Backpack
If you’re trying to blend in while locking down your gear, the Faraday Defense Corp 17L Backpack checks both boxes. A lot of signal-blocking bags scream “I’m hiding something” with their bulky shapes and tactical aesthetics, but this one keeps things low-profile. It looks like a clean, minimalist daypack—but under the surface, it’s a full-blown mobile signal vault.
If you’re trying to blend in while locking down your gear, the Faraday Defense Corp 17L Backpack checks both boxes. A lot of signal-blocking bags scream “I’m hiding something” with their bulky shapes and tactical aesthetics, but this one keeps things low-profile. It looks like a clean, minimalist daypack—but under the surface, it’s a full-blown mobile signal vault.
That’s exactly why we like it for travel and commuting. Whether you’re hopping on a plane, commuting through the city, or working in sensitive environments, this pack gives you full signal-blocking protection without making you look like you’re prepping for a cyberpunk apocalypse.
What We Like: First, we like the functionality. The main compartment is fully lined with multi-layer Faraday shielding, which means once you drop your laptop, tablet, or phone inside, they’re off the grid—no GPS, Wi-Fi, cell, or Bluetooth signals are getting in or out.
It’s not just one big pocket either. The 17L size makes it practical for real-world use. There’s room for a laptop, accessories, documents, even a change of clothes if you’re packing light. Perfect for commuters, digital nomads, or anyone who wants their privacy without giving up utility.
What really sets it apart, though, is the design. We like the clean, modern silhouette look—think “tech professional,” not “doomsday prepper.” It fits into office settings, airport terminals, or coffee shops without raising eyebrows, which is exactly what you want when discretion is the goal.
The materials are solid, too. Water-resistant outer shell, high-quality zippers, and reinforced stitching where it matters. It doesn’t feel like a gimmick—it feels like gear built to last.
Flaws but Not Dealbreakers: It’s not a cheap pack, especially compared to standard backpacks with no signal shielding. But that’s the tradeoff for real Faraday protection in a stylish, commuter-friendly form.
Also, the Faraday lining is in the main compartment only. That’s fine if you’re deliberate about what you store and where, but if you’re expecting every zippered pouch to block signals, you’ll be disappointed. Stick your phone or laptop in the main section, zip it up tight, and you’re good to go.
And while the 17L size is ideal for everyday carry, this isn’t ideal for a bug out bag. If you need something bigger for extended travel or to haul multiple devices, you might want to look at larger Faraday duffels or cases.
Bottom Line: The Faraday Defense Corp 17L Backpack nails the balance between security and style. It doesn’t scream “tactical,” it doesn’t sacrifice usability, and it provides real, tested signal-blocking protection where it counts.
If you need a daily backpack that keeps your digital footprint under control without making you look like you’re about to vanish into the wilderness, this is the one to grab. Whether you’re traveling internationally or just riding the subway to work, this bag keeps your gear safe—and your profile low.
6. BEST DRY BAG: SLNT Waterproof Faraday Dry Bag
SLNT Waterproof Faraday Dry Bag
When you're hauling sensitive electronics in unpredictable environments—think rainstorms, boat decks, bug-out scenarios, or just crossing town during a monsoon—you need a bag that can do more than just block signals. You need one that can also keep water, sand, and grit out. For that, we like the SLNT Waterproof Faraday Dry Bag.
When you’re hauling sensitive electronics in unpredictable environments—think rainstorms, boat decks, bug-out scenarios, or just crossing town during a monsoon—you need a bag that can do more than just block signals. You need one that can also keep water, sand, and grit out. For that, we like the SLNT Waterproof Faraday Dry Bag.
It’s a legit Faraday bag disguised as a rugged roll-top dry bag, giving you full signal isolation and weatherproof protection in one simple, durable package. Whether you’re kayaking with comms gear or tossing your phone and tablet into the truck bed during a downpour, this bag is the best for protecting you from the elements.
What We Like: We like that it actually works as a dry bag. The materials are heavy-duty, with RF-welded seams and a roll-top closure that seals out water like a champ. It’s not the kind of bag you have to baby—it’s made to take a beating.
Inside, it’s fully lined with Faraday shielding material, which blocks cellular, WiFi, Bluetooth, GPS, and RFID signals when rolled and properly sealed. That means your gear stays dry and dark—offline and off the grid, no matter where you go.
It comes in multiple sizes, too—from 2.5L to 20L. The smaller options are great for glove box storage, while the larger ones are ideal for go-bags or field kits.
What we really like, though, is how simple it is. No zippers to break, no extra pouches or padding to get soaked—just drop your device in, roll it up, and it’s protected from the elements and electronic threats.
Bonus—it’s made in the USA.
Flaws but Not Dealbreakers: It’s a dry bag, not a laptop sleeve, which means there’s no padding, no organizer panel, and no external access points. You’re not using this for daily carry unless you’re intentionally going minimalist or waterproof is a non-negotiable.
Also, because of the roll-top design, access is slower compared to zipper-based Faraday pouches. That’s just part of the tradeoff.
Lastly, it’s not cheap for a dry bag—but you’re not just buying waterproofing, you’re buying signal isolation. Viewed through that lens, the price tag makes a lot more sense.
Bottom Line: The SLNT Waterproof Faraday Dry Bag is the best of both worlds for anyone who needs waterproof protection and digital privacy in one go. Whether you’re prepping for a rainy hike, building out a bug-out bag, or just need a reliable way to shield electronics in harsh conditions, this bag delivers.
It’s tough, it’s simple, and it works exactly the way you want a dry bag to work—only smarter.
7. BEST FARADAY DUFFEL BAG: GoDark Duffel Bag
GoDark Duffel Bag
GoDark keeps making our short list for a reason. The gear is clean, low profile, and offers top notch faraday protection that's trusted by the FBI and military.
GoDark keeps making our short list for a reason. The gear is clean, low profile, and offers top notch faraday protection that’s trusted by the FBI and military.
If you’re on the go and you need storage for something more than just a cell phone or laptop, the GoDark Duffel bag offers 45L of space – big enough to protect a solar panel.
Check out our full hands-on review of the GoDark Duffle Bag here.
What We Like: Firstly, it has credible shielding protection. The kind you want in a faraday bag. We ran a live phone call, sealed the bag, and the call died — exactly the kind of protection you want.
Check out the video here:
The duffel also passed our weather-proof test with flying colors when we dowsed it with a hose for several minutes. It’s made with 600D poly shell with PU/TPU backing, a roll-top Faraday liner, and sealed zips. It shrugged off the hose soak and kept the interior dry.
The sealed zippers carry a lot of the weather protection, blocking water at the teeth and tape—usually the first place “weatherproof” bags give up.
The duffle also has lots of storage space. We packed 5 pants, 5 t-shirts, 1 fleece, a laptop, 4 handheld radios, a Lifepod safe, 3 USB hard drives, 2 small flashlights, and 1 full size Maglite into the bag and still had plenty of space to go.
Overall, it’s a big bag that protects your gear and more. It has plenty of space, an understated design that doesn’t call attention, and does its job.
Flaws but Not Dealbreakers: At $400, the price will be the big sticking point. However, this isn’t just a regular duffle bag, this adds faraday protection, which is worth the investment if you have valuable electronics to protect.
There’s a few other things we could nitpick. The strap attachment hardware is made of plastic and has a proprietary design. There’s other hardware that could be more universal or easy to replace.
Lastly, the straps aren’t all that comfortable. You’re supposed to be able to carry this like a backpack, but we didn’t find that very comfy and opted to just use the single over-the-shoulder strap.
Bottom Line: If you need a duffle that blends in, keeps weather out, and makes your phone disappear from the grid when sealed, this is the one. The GoDark 45L pairs credible RF shielding with a durable, travel-ready shell and a clever removable liner. It isn’t cheap and the hardware choices won’t thrill gear tinkerers, but as a quiet, high-capacity privacy bag that just works, it’s a standout.
8. BEST RIFLE CASE FOR OPTICS: Mission Darkness Dry Shield Revoke Faraday Case
Mission Darkness Dry Shield Revoke Faraday Case
If you’re running a rifle with any kind of sensitive electronics—like night vision optics, IR lasers, thermal scopes, or smart lights—you already know they’re the most fragile (and expensive) part of your setup. EMPs and solar flares can all turn your high-speed rig into a very expensive paperweight.
If you’re running a rifle with any kind of sensitive electronics—like night vision optics, IR lasers, thermal scopes, or smart lights—you already know they’re the most fragile (and expensive) part of your setup. EMPs and solar flares can all turn your high-speed rig into a very expensive paperweight.
Our pick to protect this gear is the Mission Darkness Dry Shield Revoke Case. It’s not just a soft rifle case—it’s a mobile Faraday vault. Designed specifically to protect long guns and their electronic attachments, this case combines rugged waterproof construction with full-spectrum signal isolation, giving you peace of mind when it comes to your gear’s most vulnerable components.
What We Like: The size and function are dialed in. This case is long enough to hold a rifle or AR-style carbine with optics, lights, and other attachments mounted. You don’t need to break everything down to fit it inside—which is kind of the whole point. You’re protecting the entire setup, not just the barrel and lower.
Signal protection is what sets this case apart. The interior Faraday lining effectively blocks EMPs and CMEs—meaning your optics and electronics are shielded from damage when stored. It’s the same tech used in Mission Darkness’s law enforcement and military-grade products, scaled up for rifle-sized hardware.
The outer shell is made of tough, waterproof ballistic nylon with welded seams and a roll-top closure. Whether you’re throwing it in the back of a truck, dragging it through the rain, or packing it into a long-term storage container, this thing is built to take abuse without compromising what’s inside.
And unlike a rigid hard case, the Revoke is easier to store and more versatile. It can flatten when empty, doesn’t scream “gun case,” and gives you more flexibility in a go-bag or transport setup.
Flaws but Not Dealbreakers: This isn’t a dedicated rifle case with foam inserts and molle panels—it’s a protective bag first, carry system second. There’s minimal interior padding or Velcro tie-downs, so if you’re hauling it across rough terrain, you’ll want to add some internal cushioning or carry the rifle in its own sleeve inside the bag.
It’s also priced like a specialty tool. You’re paying for a bag that protects sensitive gear from water and signal-based threats—not just a simple gun case. That said, the price is more than fair when you factor in what you’re protecting.
Bottom Line: The Mission Darkness Dry Shield Revoke Faraday Case is the top-tier choice for anyone who wants to shield a fully equipped rifle from both physical and electronic threats. Whether you’re a prepper safeguarding optics from EMPs or a professional protecting high-value equipment during transport, this case does what few others can—keep your rifle and its sensitive attachments safe, silent, and off the grid.
It’s not just about carrying your rifle. It’s about protecting the tech that makes it work.
9. BEST FOR GENERATORS: Mission Darkness Revelation EMP Shield for Generators
Mission Darkness Revelation EMP Shield for Generators
Generators, power banks, and backup batteries—these are the lifelines when the grid goes down. But if you’re prepping for a true worst-case scenario like an EMP or solar flare, here’s the brutal truth: if your backup power source isn’t protected, you’re just stockpiling dead weight.
Generators, power banks, and backup batteries—these are the lifelines when the grid goes down. But if you’re prepping for a true worst-case scenario like an EMP or solar flare, here’s the brutal truth: if your backup power source isn’t protected, you’re just stockpiling dead weight.
What We Like: First off, we like the size. The Revelation bag is big. It’s designed to accommodate battery packs, a small-to-mid-sized generator, solar battery packs, you name it!
It’s roomy enough to fit big items, but still compact enough to stash in a closet, garage, or bug-out vehicle.
The Revelation is designed to specifically provide protection from EMP, CME and solar flare protection. It uses multiple layers of high-shielding Faraday fabric and does a good job of blocking all everything you want it to.
The outer shell meets military-grade specs for signal attenuation, so you’re not just guessing—you’re covered.
The bag seals with a roll-top design and secure Velcro closure, ensuring there’s no signal leakage. It’s also water-resistant, which adds another layer of practical durability—whether you’re storing it long-term or hauling it through a rainstorm.
Flaws but Not Dealbreakers: This isn’t a grab-and-go bag—it’s designed for storage and staging. The roll-top seal takes a few seconds to open and close, which isn’t ideal if you’re trying to yank a generator out on short notice. But again, that’s the tradeoff when you prioritize shielding over access speed.
Also, while it’s built like a tank, it doesn’t have built-in padding. You’ll want to be careful with placement or add a protective liner if your gear is especially fragile.
And yes, it’s not cheap—but neither are generators. If you’ve invested in backup power, it makes sense to invest in something that’ll actually keep it working after the blast.
Bottom Line: The Mission Darkness Revelation EMP Shield is a solid faraday bag for protecting mission-critical gear like generators and power banks. It’s not flashy. It’s not fast. But it does one thing extremely well: it keeps your power supply alive when the rest of the grid gets vaporized.
If your emergency plan includes backup power, this bag needs to be part of it. Because having a generator doesn’t matter if it doesn’t work when you need it most.
What is a Faraday bag?
A Faraday bag is a specialized, signal-blocking pouch designed to protect electronic devices from electromagnetic fields. Named after scientist Michael Faraday—who developed the Faraday cage concept—it acts like a portable shield that blocks radio frequencies (RF), Wi-Fi, Bluetooth, GPS, and even powerful electromagnetic pulses (EMPs).
When you put a device inside a Faraday bag and seal it properly, it’s essentially cut off from the outside world. No signals in, no signals out. That makes it incredibly useful for:
- Preppers who want to protect gear from EMPs or solar flares
- Everyday users concerned about tracking, hacking, or data theft
- Law enforcement and cybersecurity pros who need to secure digital evidence or sensitive data
Common items people store in Faraday bags include phones, radios, key fobs, USB drives, laptops, hard drives, and emergency electronics like radios or GPS units.
In short: a Faraday bag is like a blackout bunker for your electronics—blocking external threats and keeping your tech secure when it matters most.
How to Use a Faraday Bag
Using a Faraday bag is about as straightforward as it gets—just drop your device inside and seal it up. That’s it. But if you want to double-check that it’s doing its job, here’s how:
- Try calling a phone that’s inside the bag
- Attempt to connect a Bluetooth device
- Key up a two-way radio and see if it transmits
If none of those work, congrats—your Faraday bag is doing its thing.
For short-term storage, it’s smart to power down the device before sealing it inside. Just remember, a Faraday bag only protects when your device is actually inside it. The moment you take it out to use, it’s vulnerable again.
The best move? Make it a habit. Get used to dropping your sensitive electronics—phones, radios, whatever—back in the bag when you’re done using them. It only takes a second, but forgetting to do it could leave your gear exposed when it matters most.
What’s the Difference Between an EMP Proof Bag and a Faraday Bag?
Here’s where things get a little murky—mostly because marketers love buzzwords more than engineers love precise definitions.
At a glance, EMP-proof bag and Faraday bag sound like two different things, maybe like cousins that see each other at family cookouts but don’t really talk. But the truth is: in most cases, they’re the same thing—just wearing different labels.
A Faraday bag is a type of enclosure that blocks electromagnetic fields. Think of it like a portable Faraday cage (minus the chicken wire and tin foil). It’s designed to stop radio waves, Bluetooth, Wi-Fi, GPS, RFID—basically, anything that makes your electronics “smart” and trackable.
An EMP-proof bag is essentially a Faraday bag that’s had a protein shake and a marketing team. The term “EMP-proof” just means the bag is rated to block much stronger bursts of energy—like the kind you’d get from a nuclear detonation in the atmosphere, a solar flare, or whatever flavor of apocalyptic nightmare you’re prepping for.
So here’s the cheat sheet:
- All EMP bags are Faraday bags.
- Not all Faraday bags are rated for EMP protection.
- EMP-rated bags usually have lab-tested shielding levels, multiple layers, and are designed to meet certain military or scientific standards.
- Cheap knockoff Faraday bags might block your cell signal but fold like wet cardboard during a real EMP event.
If you’re just looking to block GPS or Bluetooth while you go off-grid for the weekend, a standard Faraday bag will do the trick. If you’re building a Faraday fortress to survive the digital dark ages, look for EMP-rated protection—and preferably something that’s been tested, not just labeled “EMP-proof” because it sounds cool.
FINAL THOUGHTS ON THE BEST FARADAY BAGS
At the end of the day, a Faraday bag isn’t about paranoia—it’s about preparedness. Whether you’re worried about EMPs, solar flares, hackers, or just want to keep Big Tech’s fingers out of your digital pockets, having signal protection you can count on is a smart move.
If you’re after a reliable, all-around Faraday bag, the Mission Darkness Non-Window model is tough to beat. It’s trusted, tested, and built like it’s ready for the end of the world. For something sleek and everyday-carry friendly, GoDark bags are a great pick—perfect for keeping a low profile without sacrificing performance.
On a tighter budget? The Simket 2-Pack won’t win any design awards, but it gets the job done and won’t leave your wallet in tears.
And if you’re looking to go full prepper mode, protect your optics, or stash away a generator like it’s 1999 again, the Mission Darkness Revoke Case or Revelation EMP Shield will scratch that doomsday itch real fast.
We want to hear from you. Have you used a Faraday bag that you swear by—or one that totally let you down? Drop a comment below and let us know which bags you trust, which ones disappointed you, or if we missed one that deserves a spot on the list. Your feedback helps others prep smarter.
Keep the research going.
GO DEEPERSLNT Faraday Dry Bag Review
The SLNT dry bag is one of our top picks above, but the full review covers real-world testing — signal isolation, water resistance, and the build details that didn't fit in the roundup.
GO DEEPERGoDark 45L Duffle Faraday Bag Review
For anyone needing bulk capacity — full bug-out kit scale, not pocket-carry — the GoDark duffle is the top large-capacity pick. Our full review covers the field testing.
Justin Trump is the managing editor and owner of CAT Outdoors. The son of a Vietnam veteran, he’s a Certified Glock Armorer, an avid gun enthusiast and 2A advocate. He holds two firearm patents for the CAT M4 and Talon tools. When not managing CAT Outdoors, he enjoys spending time with his family and friends, rooting for Michigan sports teams, and serving his church.