R1SO in Oil Tan leather is a premium wallet made for minimalists who appreciate craftsmanship. Based on the Slimmy OG 3-Pocket, this slim wallet has been redesigned from the ground up for maximum thinness - 4mm. R1SO eliminates excess layers using side slots for compartmentalization. Small footprint, perfect capacity. The Slimmy R1SO (78mm) in the black colorway with white stitching eliminates excess layers of leather without compromising functionality (4mm thinness). The center pocket provides fast access to cash and cards. Side slots accommodate less used cards and create tension to keep things tight.