Our ultra-thin wallets solve the top 5 wallet problems. Big Skinny wallets are ultra-thin, flat, and small because our proprietary ultra-thin (and sturdy) nylon micro-fiber wallet material is 12X thinner than leather and does all the work holding and separating your cards and cash rather than thick leather like regular wallets. Each of our thin wallets organizes and fits all of your plastic cards, cash, and everything else without giving up any card or cash pockets, or forcing you to use unconventional wallet designs. Full Functionality yet your wallet will be 50+% thinner than your regular leather wallet. Guaranteed.