billfold

A billfold is a type of wallet designed to fold in half, providing a dedicated space to carry currency along with slots for cards and identification. The typical design is a bifold that, when closed, keeps bills flat and accessible, often with additional compartments for credit cards, an ID window, and sometimes a coin pocket. While the term can refer to any foldable wallet, billfolds are commonly associated with leather constructions.

Materials and variants vary widely. Leather remains the traditional choice, with cowhide or calfskin being common, but billfolds are also made from synthetic fabrics, suede, or exotic leathers. Designs range from slim minimalist card holders to full-featured bifolds and tri-folds. Some modern versions include RFID-blocking layers to deter radio-frequency theft, while others emphasize travel-friendly organization with multiple bill sections and larger currency pockets.

History and terminology. The word billfold derives from the practice of carrying banknotes (bills) in a foldable wallet. Billfolds became popular in the United States during the 19th and early 20th centuries as standardized ways to store money and cards. Today, the term is largely synonymous with wallets in American English, though many regions simply say “wallet.” The design has evolved to accommodate electronic cards and digital wallets, while the core function—holding currency and cards—remains.

Usage and care. Billfolds are used to organize money, identification, and payment cards for everyday transactions. Care typically involves regular cleaning and conditioning for leather, avoiding excessive moisture, and storing the wallet flat to preserve its compartments.