Salewa Zebru Responsive Zip Longsleeve

Baselayers are crucial for high-intensity activities in cold weather. The Zebru Half Zip Tee is a high-performance baselayer made from super-fine merino wool (64%) for optimal warmth, temperature regulation, and close-to-skin comfort. It utilizes thermal body mapping and our proprietary Responsive technology to help you regulate your body temperature.

Named after Monte Zebrù (3,735 m) in the Ortler Alps on the border with South Tyrol and made in Italy, this functional underwear is primarily composed of merino/polyester fibers blended with Responsive polyamide yarns enriched with a unique mix of natural thermoreactive minerals. Responsive is an intelligent fabric that harnesses infrared energy by absorbing the far infrared radiation (FIR) emitted by the body and gradually releasing it back to the muscle tissue. Research shows that it enhances circulation, improves cellular performance, and promotes oxygen supply, allowing you to perform better and recover faster. Additionally, Responsive is an integral part of the fiber—it remains effective throughout the garment's lifespan and cannot be washed out.

The Zebru features a close-fitting, athletic performance cut, and the half zipper allows you to quickly trap or release heat. The advanced tubular knitting technique ensures a seamless, one-piece knitted torso, providing more comfort without friction. Merino wool is also odor-resistant and requires less frequent washing. A thermoregulating merino baselayer for multi-day and intense alpine activities in changing conditions.