To meet popular demand, Five Ten souped up the Mocc. They named this super Mocc the Five Ten 5x. Designed for sport climbing and bouldering, the 5x has five times the advantages of a regular slipper, with a fish-hook mid-sole, power Velcro Brand straps, Asym elastic and zipper closure and Asym slingshot rand. The unlined-leather shoe features classic Stealth C4 rubber soles.