A Trifold is a folding case or Wallet composed of three panels which are used for carrying personal items such as credit cards, cash and identification documents. These folds or panels usually feature an inner face with compartments. When the folds are away from each other, the Trifold can be opened on the upper edge to allow the placement of paper money or small documents.
About Wallets:
Wallets are a flat piece of material, often leather or leather-like materials, that is used to hold currency. Wallets often have compartments for paper money, credit cards, identification and coin money.