Salewa Pants 3/4 Cristallo Warm Alpine Merino is the perfect base layer tights for high-intensity mountaineering in colder conditions. The Cristallo 3/4 Tights are designed to provide wicking warmth and next-to-skin comfort for active mountain use. Wicking, thermoregulating comfort Alpine Merino Responsive is the ideal warm, winter baselayer fabric. Its hybrid merino wool/ polyamide blend rapidly transports moisture away from the body and dries quick. We further enhance its synthetic fibres with our proprietary Responsive technology – a special mix of natural thermoreactive minerals that recycles natural far-infrared (FIR) energy, helping you to perform better, recover faster and stay warmer for longer. And as Responsive is an integral part of the fabric yarn, these benefits will never wash out or break down. Freedom of movement To manufacture Alpine Merino Responsive, the wool is spun around a nylon core to make the fabric more stretchy and durable. Together with the elasticated waist and gusset crotch construction, this further supports full freedom of movement and all-day stretch comfort, while the flatlock seams prevent chafing. This is a SALEWA® Committed product that meets strict environmentally-friendly and sustainability criteria.