Mens size 11.5The Matryx Trail Runner is made with seamless, one-piece construction uppers made with Matryx, which Nobull described as a wicking and abrasion-resistant material woven from synthetic fibers. Also, the uppers feature woven technical yarns to offer strengthened medial and lateral support and strategically placed reflective yarns for visibility in low light conditions. Specifically for optimal use the trail, Nobull equipped the shoe with an outsole lug pattern designed with traction, support and grip on technical terrain in mind. The outsoles sit under lightweight midsoles made with a high-rebound Phylon compound.