The inov-8 Roclite Pro G 400 GT is a lightweight, flexible hiking boot for serious outdoor adventures. Featuring a Graphene-Grip rubber outsole and a Schoeller ceramic-coated fabric upper, the ROCLITE PRO G 400 Gore-TEX delivers unprecedented strength and durability over any terrain in all weather conditions. Surface: Trail / Mixed Terrain. Drop: 8mm. Footbed: 6mm. Shoe Fit Scale: Grade 4 inov-8 shoes are designed with Met-Cradle technology to lock down the mid-foot for a stable hold. ~Graded on a scale of 1-5, Grade 1 represents the closest, most precise fit. Grade 5 has the widest fitting toe box.~ Breathable and waterproof upper delivers all-day comfort and protection. ADAPTERWEB met-cradle adapts to the movements and swelling of the foot for an adaptive, more comfortable fit and feel. POWERFLOW midsole delivers 10% shock absorption and 25% better energy return than standard midsoles. Lace-up closure and loop eyelets with TPU overlay that provides structure. Padded tongue and collar with pull loops for easy on and off. Comfortable textile lining and insole. DFB (Dynamic Fascia Band) shank mimics the Windlass Effect to deliver a jolt of energy with each stride. META-FLEX technology in the forefoot for optimal multi-directional flexibility that moves with the natural motion of your foot. Graphene-enhanced G-GRIP rubber outsole is 50% stronger, harder-wearing, and more elastic than standard outsoles.