Trail Running Upper: Windproof dense upper, TPU film Lining: GORE-TEX waterproof bootie Outsole: Vibram MEGAGRIP wet-grip rubber Vibram MEGAGRIP wet-grip outsole delivers superior traction, handling both dry and wet surfaces with ease, making climbs more effortless. ECCEVAI ultra-thick rebound midsole provides cushioning and rebound with a pump-like feel. GORE-TEXmembrane is waterproof and breathable, keeping feet dry and comfortable through water crossings. BOA Fit System enables quick micro-adjustment via dial for a precise, snug fit. Superior Traction / Vibram MEGAGRIP outsole Continuous Cushioning & Rebound / ECCEVAI ultra-thick rebound midsole Quick Micro-Adjustment, Precise Fit / BOA Fit System Waterproof, Breathable, Lasting Dryness / GORE-TEX waterproof bootie Quick Gaiter Attachment, Wind & Sand Proof / Gaiter attachment point