Fast and light, comfortable and supportive, the Aerios FL Mid GTX is for extended hikes on technical trails. The run-inspired design synthesizes with your foot to minimize friction, and the taller collar adds support and helps seal out debris. GORE-TEX waterproof protection with improved comfort and breathability. Agility, stability and confidence underfoot come from the Vibram Megagrip outsole, compressed EVA midsole and integrated TPU shank. Features Waterproof Breathable Lightweight Durable Vibram MegaGrip rubber compound is durable and grippy Optimized mid height provides ankle support Compressed EVA foam midsole and integrated TPU shank increases agility, stability and confidence underfoot TPU toecap provides protection from abrasion 4mm thickness OrthoLite 3D molded insert Taller collar adds support and helps seal out debris Specs Weight (1/2 Pair): 370 g / 13.0 oz GORE-TEX membrane Cordura mesh TPU high abrasion protection films