Big Skinny Men's RFID Blocking Curve Bi-Fold Slim Wallet, Holds Up to 20 Cards, Black Curvy, ultra-thin RFID-blocking bi-fold wallet ideal for front-pocket wallet carriers 3 card pockets, 2 extra-large hidden pockets, full-sized billfold area, and ID pocket Pockets lined with layer of RFID blocking material & a rubbery coating to prevent cards from sliding out Constructed of thin, light, and durable nylon microfiber; machine washable Measures 4-5/8 x 3-1/8 inches