Designed to help You regulate Your core body temperature and prevent overcooling during intense physical activity in cold conditions. Our Salewa's extra insulation layer for skimo, ski touring, alpine climbing, ice climbing and more. TirolWool® Celliant® is our proprietary lightweight, insulation material that combines innovative polyester fibres enhanced with thermo-reactive minerals and wool sourced from Tirolean sheep. Heat emitted by the body is absorbed and converted into infrared radiation, which is stored and reflected back to the body – keeping You warmer for longer. TirolWool® Celliant® is water resistant, breathable and will still keep You warm when wet. Further features include: Durastretch inserts for ease of movement, high ergonomically-shaped front collar and front zip with full-length internal windproof flap. SALEWA - Ortles Hybrid Tirolwool\u00ae Vest Men black out