Big Skinny Men's Compact Sports Leather Bi-Fold Slim Wallet, Holds Up to 20 Cards Ultra-thin bi-fold wallet can hold 20 plastic cards Extra-wide card pocket, ID pocket (with clear window), and 2 oversized hidden storage pockets Pockets lined with rubbery coating to prevent cards from sliding out Constructed of top grain cowhide leather with nylon microfiber interior Measures 4-1/2 x 3-1/16 inches