Wafer(TM) Slim Tri-Fold Security Wallet by Hazard 4(R) - Kevlar
This security-wallet is ultra-thin, rugged and features a unique removable carabiner on a strong loop, so it can be clipped to you or in a pack/bag for loss-free carry. Clip it to a belt-loop, d-ring, etc. to keep close at hand. It also comes with a strong nylon strap which can be clipped with the carabiner and looped around your belt, while your wallet sits out of sight in your pocket. The thin design still fits many cards and bills without creating pocket-bulge. It uses high quality Velcro and non-stick mesh i.d./card windows. Buy the optional Civilian(R) spring-loaded Rewind(TM) Gear Retractor to make it a retractable wallet (a great alternative to clunky chain wallets).