GO DARK.
STAY PROTECTED.
SHIELDSAK blocks all wireless signals completely. Your phone, passport, and cards cannot be tracked, pinged, or read while sealed inside. Total signal isolation.
Military Grade · Blocks GPS / WiFi / Cellular · RFID Protection · Made in USA
vs. The Rest
Most signal-blocking sleeves use a single thin layer of metallized fabric. Signals slow down. They do not stop.
SHIELDSAK uses a military-grade multi-layer Faraday construction that blocks GPS, WiFi, Bluetooth, cellular, and RFID completely. A phone sealed inside cannot receive a call, ping, or message. No exceptions.
The fabric itself is patented: silver, copper, and nickel woven directly into ripstop nylon, not a thin foil liner that wears out.
Trusted by law enforcement, security professionals, and travelers who need real protection, not false confidence. Made in USA since 1996.
SIZING
What Customers Are Saying
Verified Amazon Purchases
“Now you see me... now you don't. I can confirm that my phone did not ring when sealed inside. I use this everywhere I travel.”
leatherneckcpl · Verified Amazon Purchase
“I have used this RFID blocking bag during travel for ID, passports and also my iPhone. It's perfectly sized to fit the iPhone plus a driver's license and several credit cards. The phone cannot receive a call when it's in the bag.”
Mark T. · Verified Amazon Purchase
“Works great for phone and for e-Passports when I'm travelling.”
LM · Verified Amazon Purchase
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Faraday Bag for Phones | Blocks Signal & Tracking | SHIELDSAK®
Regular price $ 91.49 USDRegular price -
Faraday Bag for Tablets | Blocks Signal & Tracking | SHIELDSAK®
Regular price $ 148.49 USDRegular price -
Faraday Bag for Laptops | Blocks Signal & Tracking | SHIELDSAK®
Regular price $ 234.49 USDRegular price -
Faraday Bag for Key Fobs | Blocks Relay Attacks | SHIELDSAK®
Regular price $ 67.99 USDRegular price
SELF-TEST PROTOCOL
Seal your phone inside
Call it from another line
Silence confirms it works
If it rings at all, return it for a full refund. No questions asked.
Keystone Compliance · 30MHz–18GHz · up to 104dB attenuation confirmed · Full report
Frequently Asked Questions
What size do I need?
Phone Pouch fits phones and passports up to 4.5" x 7.75". Tablet Pouch fits tablets and iPads up to 9.5" x 12". Laptop Pouch fits laptops up to 12" x 18". Key Fob Pouch fits any keyless entry fob at 4.5" x 3.5", and doubles as RFID protection for cards.
How do I know it actually works?
Don't take our word for it. Seal your device inside and call it, ping it, or try to unlock your car. It should go completely silent. Independent lab Keystone Compliance tested SHIELDSAK from 30 MHz to 18 GHz and confirmed up to 104 dB of signal attenuation. If your device still connects, return it for a full refund, no questions asked.
Will the shielding wear out?
The conductive layer is woven directly into the ripstop nylon (silver, copper, and nickel), not a thin foil liner glued to fabric. Avoid sharp objects and excessive folding, and it will hold up to regular use. Inspect periodically for punctures, since physical damage to the conductive material can reduce shielding performance.
Can this stop a relay attack on my car keys?
Yes. Relay attacks work by capturing your key fob's signal from outside your home and relaying it to your car. Sealed inside SHIELDSAK, your fob cannot transmit at all, so there is no signal to capture, the same Faraday principle blocking cellular and WiFi in the Phone, Tablet, and Laptop pouches.
Does this protect against EMP?
SHIELDSAK is lab-tested from 30 MHz to 18 GHz and confirmed to block up to 104 dB of signal, covering the frequency range used by cell towers, WiFi, Bluetooth, GPS, and RFID readers, and a real portion of the range associated with a nuclear EMP's damaging pulse. That said, we have not tested SHIELDSAK against an actual EMP event or to a dedicated EMP standard, and our testing does not cover frequencies below 30 MHz. If EMP survival specifically is your requirement, look for a product independently certified to an EMP standard. For blocking everyday tracking, hacking, relay attacks, and RFID skimming, SHIELDSAK's testing is directly relevant and independently verified.
CARE
General Care
Do not machine wash or immerse in water. Wipe the exterior with a soft, slightly damp cloth if needed, and air dry completely before use or storage.
Protect the Fabric
Avoid sharp objects, knives, or abrasive surfaces that could puncture the ripstop nylon. Do not fold or compress the pouch more than necessary, and keep it away from excessive heat or direct sunlight.
Storage
For the best long-term protection, store your SHIELDSAK® inside an appropriately sized aLOKSAK® bag to guard against moisture, dust, and salt air.
Inspection
Periodically check for punctures or damage to the conductive materials. Physical damage can reduce shielding performance; replace the pouch if wear is significant.