The Eagle Creek Bi-Fold Wallet is slim and trim, with a European flair, which significantly reduces the bulge in the back pocket caused by more traditional fat wallets. A see-through window displays your picture ID, for easy identification when going through security checks; while multiple card slots let you store your most important pieces of plastic. If you're old fashion and still carry cash, there's room for it also, plus a secret security pocket for hiding a few large denominational bills, or important documents. The Eagle Creek Bi-Fold Wallet - it's a classic.