The winter running shoe in Gore-Tex membrane with Invisible fit technology dedicated to off-road running in the winter months over ultra distances and long workouts thanks to the exceptional cushioning guaranteed by the innnovative high energy return Infinitoo Technology midsole. Gore-Tex Invisible FitGore-Tex membrane with Invisible Fit technology laminated directly on the outer upper for greater flexibility, comfort and lightweight.Exceptional drying speed compared to traditional construction.