hoj co. skull wallet-double id bifold-full grain mens leather wallet-multi card capacity house of jack co. guaranteed to turn heads: jack’s skull bifold is the ultimate in attitude. handcrafted in full grain leather, the embossed skull graphic is hand burnished for a vintage appearance. whether biker, rocker or hard core persona, this full sized men's wallet was designed with organization and functionality in mind with the ease of the flip id construction. based customer feedback, once a guy carries this silhouette, he will always carry this silhouette.