The X-1 from Teva takes amphibious performance to the highest level for the athlete looking to cover varied hardcore terrain as fast as possible. Features include Combination monofilament mesh and ripstop nylon upper. 360-degree drainage system. Wraptor Lite support system. Drain-Tech molded EVA sockliner. Singe-density EVA midsole. Encapsulated Shoc Pad. Heel-to-toe Protection Web technology and race-lite rubber outsole.