The Mad Rock Mugen is a perfect combination of performance, fit and durability and with Mad Rock's new design, it's making a big splash with sport climbers. They've upgraded the synthetic upper and lining to give the shoe a trusted feel and fit on your foot with just enough give for comfort and flexibility. Built with their dual density sole and tenacious hooker heel cup, this shoe is designed to perform on trad, sport, gym and bouldering. The Mugen Edges on the most minute flakes. Rubberized dual strap closures allow you quick entry and exit and gives more friction in the cracks. The synthetic padded tongue keeps you well secured and cool all day. The Mugen is made entirely of Mad Rubber and natural and produced fibers, making this shoe completely vegan friendly. Specs: Sole: 5.3mm Mad Rubber Formula #5 Heel Cup: 3-D molded Hooker heel with descent tread, Mad Rubber Formula #3 Rand: 2.2mm Mad Rubber Formula #4 Midsole: 1mm compressed fiber midsole Upper: 2.0mm TekFlex synthetic upper with Mad rubber toe patch Construction: Double stiched, seamless binding, padded tongue Entry/Closure: Dual external directional pull tabs with dual TPR rubber coated Powerlock closure straps