Carbon Fiber RFID Blocking Card Sleeve ID RFID blocking protects your chip cards from being scanned unknowingly whilst in your pocket or bag. It is not perfect protection tho, up close and personal, like in front of a scanner, the only protection is a faraday cage which just isnt practical to haul around in your pocket. 3 sleeves organizes cards & cash, holds 4-6 cards + dedicated ID sleeve Durable laminate carbon fiber material repels water, sweat & grime Built rugged, our carbon fiber wallets are known for their long lasting durability, even in the hands (and pockets) of people who consider themselves to be rough on their stuff. Made entirely in the USA in our solar powered workshop with US sourced materials by a small environmentally conscious company.