A bifold is a small folding case or wallet used for carrying personal items such as credit cards, cash and identification cards. A bifold is composed of two panels which usually feature an inner face with compartments and a plain outer face. When the folds are away from each other, the bifold can be opened on the upper edge to allow the placement of paper money or small documents.
About Billfolds:
Billfolds are flat folding cases for carrying cash, credit cards, and identification cards. Billfolds or wallets are usually made of leather or leather-like materials.
