ChronoGTX is a mountain boot made from fine, durable Nubuck leather. The Michelin® Off Road sole consists of a double-density EVA midsole that offers optimal walking comfort and high stability when hiking in the forest or on simple dirt roads, while the natural cork fibre inserts ensure a high anti-humidity effect. The hybrid dual-compound outsole with Fiber Lite inserts is made from a blend of virgin rubber and scrap discarded during the rubber manufacturing process. The soft foam makes the shoe soft at every step, ensuring comfort and well-being even if it's worn for the entire day. The leather upper encloses the foot without constricting it and guarantees high breathability. One of the latest laminates introduced by GORE-TEX was chosen to insulate the shoe to make it withstand the daily climatic challenges. This membrane is also the most sustainable. The percentage of CO2 emissions in the manufacture of the GORE-TEX Extended Comfort Flux membrane is 1/3 lower than that of a comparable GORE-TEX laminate but with new material.