Inspired by long-distance trail running footwear, the Aerios FL GTX delivers the confidence, comfort and support for fast and light hikes on shifting terrain. The design synthesizes with the foot to minimize friction, and waterproof protection comes from a GORE-TEX membrane featuring improved comfort and breathability. Agility, stability, and confidence on technical trails comes from the Vibram® Megagrip outsole, compressed EVA midsole and integrated TPU shank.Features Technical Features Waterproof Breathable Lightweight Durable Footwear Construction TPU toecap provides protection from abrasion Optimized mid height provides ankle support Compressed EVA foam midsole and integrated TPU shank increases agility, stability and confidence underfoot Footwear Liner Construction 4mm thickness OrthoLite™ 3D molded insert Taller collar adds support and helps seal out debris Footwear Outsole ConstructionVibram® MegaGrip™ rubber compound is durable and grippy Specs Weight: (1/2 Pair) 345 g / 12.2 oz Fit: Standard Width Materials: GORE-TEX membrane Cordura® mesh TPU high abrasion protection films