Go dark, with our handcrafted Faraday Cellphone Zipper Pouch. Featuring a super durable Ballistic Nylon outer layer, which is knife, shrapnel and tear resistant. Ballistic Nylon was originally developed during WWII for pilot Flak Jackets. Military Grade Faraday lined inside. Faraday fabric is made of woven copper and nickel. Used by military and law enforcement, Faraday fabric blocks all wireless signals, including cell phone, WiFi, Bluetooth, GPS, 5G, EMF and EMI.