Super thin design. Truly a minimalist's wallet with an ID window, two internal card compartments, and one external slip compartment. Perfect to hold drivers license, credit cards, a few $20 bills, two quarters (for a phone call) and a spare key. Maximum capacity 4 1/2" x 3". Maxpedition Hard Use Gear is constructed of 1000-Denier water and abrasion resistant light-weight ballistic nylon fabric treated with Teflon fabric protector for grime resistance and easy maintenance. Uses high tensile strength composite nylon thread (stronger than ordinary industry standard nylon thread). #AS-100 high grade closed-cell foam padding material for superior shock protection. High tensile strength nylon webbing. #10 high strength zippers and zipper tracks. UTX-Duraflex nylon buckles for low sound closures.