Slim Sleeve Leather Bi Fold Wallet for Minimalists Bellroy Minimalist Bifold Leather Wallet: Top Grain, Slim Design Etsy Men's Leather Slim Bifold Wallet Etsy Slim Leather Bifold Wallet For Men & Women Slim Bifold Wallet Brandability. 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.