**Feature** Ultra-compact bi-fold wallet holds more than 30 full-size plastic cards 3 tiered card pockets， 1 hidden pocket， 1 clear ID pocket， full-sized billfold area Pockets lined with rubbery coating to prevent cards from sliding out Constructed of thin， light and durable nylon microfiber; machine washable Measures 5-1/8 x 3-5/8 Inch Despite its ultra-compact design， the sleek， slim and light Super Skinny bi-fold wallet from Big Skinny can carry all that you need in your day-to-day life -- more than 30 full-size plastic cards plus space for cash. It features four card pockets (which includes one hidden pocket)， an ID pocket with a clear plastic window for easy access to your driver's license or work badge and a full-size， extra-tall billfold area. The extra-wide pockets are lined with a rubbery coating to prevent cards from slipping out. Designed with rounded corners for comfort， it's constructed of a lightweight， water resistant nylon microfiber material that is 5 to 7 times thinner and lighter than leather. It's machine washable for easy care and it dries out in about 20 minutes. The Super Skinny wallet measures 5-1/8 x 3-5/8 Inch (and 4 mm thin when empty). The first Big Skinny wallet was designed by Kiril Stefan Alexandrov (the company's founder) because he loathed sitting on a thick， heavy leather wallet. Since creating the original Sport Wallet in 2005 using an advanced nylon micro-fiber material (5 to 7 times thinner than leather)， Big Skinny has added dozens of slim wallet styles for men and women with more on the way.