Free Shipping on US Orders Over $149
First Time Customers Save 25%
30-Day Money-Back Guarantee
Free Shipping on US Orders Over $149
First Time Customers Save 25%
30-Day Money-Back Guarantee
Free Shipping on US Orders Over $149
First Time Customers Save 25%
30-Day Money-Back Guarantee
Free Shipping on US Orders Over $149
First Time Customers Save 25%
30-Day Money-Back Guarantee

A bushcraft blade built for people who actually use their gear. The Mass Ratio pairs American-made CPM MagnaCut powder steel with a compact 4.125-inch blade that carves feather sticks, processes game, and preps camp meals without losing its edge.
Specs: 9.5-inch overall length, 4.125-inch blade, 7.5 oz knife weight (11.3 oz with sheath). Finish options: Apocalypse Black or Scorched Earth.
Lifetime free resharpening included. In stock at EscapeZone with tracked US shipping.
Orders ship from the U.S. in 1–2 business days. Free shipping on US orders over $149, tracked delivery on everything.
Covers defects in materials and workmanship on all gear, apparel excluded. If it fails in normal use, we make it right.
Not what you expected? Send it back within 30 days for a full refund. See the refund policy.
Questions before or after you buy? A real person reads every message, usually same day.
Faraday shielding designed to block signal across the full range — every band your devices talk on.
Per EscapeZone warranty policy to 10GHz.
“This backpack gives real peace of mind. It doesn't scream 'tactical,' but it feels protective and well made. The straps are comfortable and it's lighter than I expected.”
“I work late night shifts in a shady area of town. Wearing a bulky bulletproof vest is out of the question. But this backpack does a great job for me.”
“The bag looks clean and premium. Plenty of space for everyday use, and the Faraday pocket works great for blocking signals when I need it.”
“Super happy with this purchase. It feels durable and the organization is thoughtful. The Faraday pocket is a standout feature.”
“The bag looks clean and premium. The Faraday pocket works great for blocking signals when I need it. I like that it looks low-profile in public.”
“Excellent!”
Straight answers about what this gear blocks, how it's tested and how to use it.
Ballistic products are built to the NIJ Level IIIA standard and tested against 9mm rounds, and our faraday and EMF-shielding lines are spec-built for radio-frequency attenuation across the bands phones and card readers use. Over 25,000 customers have bought from us, with verified reviews on every product page. Shop best sellers →
If something isn't right, our refund policy covers returns on unused gear — full details and timelines are on the policy page. Read the refund policy →
Orders ship from our U.S. warehouse. Exact carrier options and delivery estimates are shown at checkout and on the shipping policy page. Shipping policy →
A U.S. brand making spec-built signal-blocking and ballistic protection gear: faraday bags, NIJ IIIA bulletproof backpacks, and EMF-shielding clothing and blankets.
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
Free Nationwide Shipping on all orders over $149
We strive for excellence in everything we do, but if you're not completely satisfied, rest assured that we'll work hard to make things right.