The superlight Aku Men's Arriba II GTX Hiking Shoe is ideal whether you're hiking fast through hot weather or slow in rainy conditions. The Gore Tex Extended Comfort waterproof membrane breathes better than most membranes, and strong suede works with 3D AirMesh to give the Arriba II ventilation and long lasting durability. Aku's Precise Fit gives the Arriba II a slight curve for a dynamic performance on moderate to difficult trails. IMS2 balances between control and shock absorption with its nylon shank, EVA lasting board, and AKU's exclusive double density midsole. Vibram's Multi MegaGrip sole lives up to its name whether you're on the uphill or down.