Offering a flat, efficient design, the open sided Mini skinny card wallet from Big Skinny provides easy access to cards and cash in the middle section via its open top and open side. This version of the open sided Mini skinny features an exterior constructed of top grain cowhide leather and an interior made of Big Skinny's ultra-thin nylon microfiber material to help keep it thinner than a typical wallet. Two pockets on the front accommodate three plastic cards each, and the clear ID pocket on the reverse also accommodates three plastic cards. The interior divided section accommodates folded cash and about three more plastic cards. The extra-wide pockets are lined with a rubbery coating to prevent cards from slipping out. The open sided Mini skinny wallet measures 4 x 3 inches. The first Big Skinny wallet was designed by Kiril Stefan Alexandrov (the company's founder) because he loathed sitting on a thick, Heavy leather wallet. Since creating the original Sport wallet in 2005 using an advanced nylon micro-fiber material (5 to 7 times thinner than leather), Big Skinny has added dozens of slim wallet styles for men and women with more on the way.