Delta Slim Single Billfold Black. Modern understatement and handcrafted quality come together in the Delta collection of wallets and accessories. Made from soft, full-grain napa leather, Delta designs feature interiors with red stitch detailing, a ballistic nylon spine, easy-access front card pockets and a bill section with leather back wall. This slim single billfold features six card slots. Special feature: Tumi ID Lock⢠is a pr