Terrex Fast X delivers a lightweight, low to the ground shoe for fast moving technical hikes. With synthetic overlays for support. It has a breathable textile upper with synthetic overlays with FORMOTION® support, designed for enhanced motion control and downhill comfort. ADIPRENE®+ in the forefoot maintains propulsion and efficiency. OrthoLite&174; moisture-wicking sockliner. TRAXION outsole provides the best grip and agility during fast activities; Continental Rubber for optimal grip in wet conditions.