Product FeaturesMax Capacity: 4.5" x 3"The MICRO is truly a minimalist"s wallet with an ID window two internal cardpartment and one external slippartment. Perfect for your drivers license some credit cards a few $20 bills two quarters (for a phone call) and a spare key. Some call this the "bikini" of wallets.Product Materials1000-Denier water and abrasion resistant light-weight ballistic nylon fabricTeflon® fabric protector for grime resistance and easy maintenanceTriple polyurethane coated for water resistanceHigh tensile strengthposite nylon thread (stronger than ordinary industry standard nylon thread)Internal seams taped and finishedStress points double stitched Bartacked or "Box-and-X" stitched for added strength