The Speedgoat 6 Mid GTX is built with the same trust-inspiring waterproof GORE-TEX membrane as before-but now with a more flexible, running-friendly collar. Grounded in Vibram(R) Megagrip with Traction Lug for enhanced bite on loose soil, this trail icon employs a foot-cradling heel bolster, lightweight, responsive midsole compound, and a protective toe rand for charging through the rough stuff. Bring it, weather. FEATURES: 100% recycled polyester mesh Waterproof GORE-TEX membrane Protective toe rand Compression molded EVA midsole Vibram(R) Megagrip with Traction Lug Bolstered heel collar construction Smooth MetaRocker(TM) Molded EVA sockliner 5mm lugs Laces with 70% recycled nylon and 30% recycled polyester (excluding aglet)