The sleek, long, thin Executive Bi-Fold Checkbook Wallet roomy enough to accommodate about 40 thick plastic cards, checkbook and cash. The clever design breaks up your cards into four discrete areas, helping you avoid staggered bulges found in other thick checkbook wallets. It features two general billfold/checkbook areas, eight extra-wide credit card pockets, an exterior gusseted zippered coin pocket and two ID pockets with clear plastic windows for easy access to your driver's license or work badge. Both ID pockets feature a thumb-activated hole for quick and easy card access. The extra-wide pockets are lined with a rubbery coating to prevent cards from slipping out. It also offers a magnetic snap for secure closure. 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 Executive Bi-Fold Checkbook Wallet measures 7-1/2 x 3-1/2 Inch (and 7 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.