Slim Leather Bifold Wallet For Men & Women Slim leather wallet, Bi Women's Bi Fold Wallet Portland Leather Goods Slim Bifold Wallet Leather Wallet Custom Men Billfold Etsy Handmade Leather Bifold Wallet Men's Personalized Wallet Etsy Women's Billfold slim Bifold Wallet Men minimalist Leather Wallet for. The leather Wallet by Prada is a bifold model with an interior bill compartment and card slots for optimal functionality. The iconic enameled triangular plaque stands out on the front, while the brand's monogram is elegantly engraved on the inside. The leather interior lends a touch of luxury and quality to the design.