Product Details Weight9 oz / 255 gHeel-To-Toe Drop 4 mm (Heel 36 mm, Forefoot 32 mm)CushionResponsive Balanced PlushStabilityNeutral Moderate StableActivity: Trail RunningBest for: Long-distance trail racesUpper: High-performance woven fabric, DuPont(TM) KevlarA(R) fibersStack Height: Heel 36 mm, Forefoot 32 mmLug Depth: 4 mmKey Features Upgraded TUNEDFIT Dual Lacing System for separate lace adjustment LightCELL midsole base featuring excellent lightness and bounce Vibram Megagrip, Litebase, and Traction Lug technology High-performance woven fabric upper reinforced with aramid fibers