Shoes for fast hikers who want an optimized gait without sacrificing stability. An Ortholite Insole provides unmatched comfort, while a Vibram SLE EVA midsole offers up to 15% greater shock absorption than average EVA. The Flextron shank improves dynamic control and torsional stability. A Vibram Megagrip Litebase outsole with Traction Lug offers superior traction on steep sections in wet or dry conditions. The rocker-shaped sole ensures a smooth landing with every step and efficient forward movement. Built with a highly abrasion-resistant mesh upper and waterproof GORE-TEX membrane, the Aenergy Ultra Low GTX are equipped for even the most advanced mountain terrain.