Product Features Max Capacity: 4.5-Inch x 3-Inch The MICRO is truly a minimalist's wallet with an ID window, two internal card compartment and one external slip compartment. Perfect for your drivers license, some credit cards, a few dollar20 bills, two quarters (for a phone call) and a spare key. Some call this the -Inch bikini-Inch of wallets. Product Materials 1000-Denier water and abrasion resistant light-weight ballistic nylon fabric Teflon fabric protector for grime resistance and easy maintenance Triple polyurethane coated for water resistance High tensile strength composite nylon thread (stronger than ordinary industry standard nylon thread) Internal seams taped and finished Stress points double stitched, Bar tacked or -Inch Box-and-X-Inch stitched for added strength.