Steep slopes/Mixed terrain Upper: XDiMESH Multidimensional Mesh/TPU film Lining: Sandproof and breathable lining Vibram Megagrip & Vibram Litebase rubber outsole, and 125mm ultra-wide forefoot provide unparalleled grip in complex terrain, e.g. steep slopes and slippery surfaces. Double-density and responsive midsole made with supercritical foaming process, with a 7% increase in thickness and a 27% improvement in rebound performance; The use of peripheral support-type elastomer materials provides reinforced fixation around the forefoot. XDiMESH multi-dimensional mesh increases durability by 20% reduces weight by 37%, and improves breathability by 40%. KAILAS AWS (Adjust Whole Sole) 3.0™ two-section lace tightening system. The first buckle helps to minimize impact to toes on down-hills and the second buckle provides stronger wrapping and stability. TPU exoskeleton joint stability system provides ankle support and prevents ankle sprains. Weight: 305g (Size 42) Drop: 6 MM