●GRS-certified recycled eco-friendly yarn woven upper offers lightness, durability, and sandproof performance ●GORE-TEX waterproof and breathable lining ●Wider sole keeps you balanced ●Thick, lightweight, bouncy midsole for enhanced comfort and stability ●Vibram Megagrip rubber outsole offers unparalleled grip on wet and slippery surfaces ●AWS (Adjust Whole Sole) two-section tightening system. The first buckle avoids toe hurt on downhill and the second buckle provides stronger wrapping and stability ●Upper: Sandproof, eco-friendly yarn woven engineered mesh, TPU film ●Lining: GORE-TEX waterproof lining ●Bottom: Vibram Megagrip rubber outsole