Holds 4-12+ cards and folded bills 2 Inward facing slots for less used cards or cash Premium waterproof, technical super fabric RFID protection on all models W: 164 mm x H: 98 mm x D: 3 mm (open) W: 80mm (closed) The perfect hybrid of slim and high-capacity, the Matter Bifold is a step up from a card holder but more compact than a full billfold. The inner pockets fit loads of folded cash or less used cards. The Matter Bifold comes in two material options: 10XD™: Pioneer Carry's proprietary super fabric is ultra-high-molecular-weight-polyethylene yarn (ten times stronger than steel per weight) blended into a fine nylon ripstop. The dense and tactile finish repels dirt and water, keeping your wallet in like-new condition for years. Baby Ballistic™ - Pioneer shrunk down a well-known workhorse fabric and put it through finishing school. Maintaining the rugged/tactical spirit of ballistic nylon, they reduced the bulk, shine, and oversized weave, creating a refined and precise material better suited for your pocket.