The Dynafit Ultra 100 GTX Womens is a waterproof and comfortable trail running shoe designed for ultra distances. Perfect for long runs in wet conditions, this shoe offers a balance of comfort, traction, and energy return. Developed with input from top ultrarunners, it ensures excellent grip and precision from start to finish. The Gore-Tex Invisible Fit membrane keeps your feet dry, while the Vibram Megagrip outsole provides superior traction on any surface. Waterproof Gore-Tex Invisible Fit membrane for wet conditions Vibram Megagrip outsole for superior traction Lightweight midsole with 20% less weight than traditional EVA Heel Preloader for secure hold and stability Seamless tongue construction to prevent pressure points Traditional lacing with stretch lace cover for secure fit Rocker shape sole for dynamic, fluid roll-through 4 mm deep lugs for improved traction Maximum-volume fit with high stack height over 30 mm Technical Features Drop: 6 mm Lugs: 4 mm Outsole: Vibram Megagrip We