Soft, natural, breathable merino wool insulates to keep you warm and comfortable even when wet. Exceptionally soft against the skin and itch free the Terramar Thermawool CS Balaclava has 360 degree degree stretch for unrestricted movement, wicks moisture away from the skin and is highly breathable. Engineered to keep your extremities warm and dry over a wide range of temperatures and outdoor activities. Constructed of Thermawool 96% mercerized supersoft merino wool, 4% spandex. Unique natural qualities include breathable moisture management and anti microbial odor control. ClimaSense CS treatment is designed to respond to your body's changing conditions to keep you comfortable no matter what your activity level The CS system adapts to the skin's surface temperature, providing a warming effect when you are cold and a cooling effect when you are active, with a dynamic moisture transport system ClimaSense offers advanced odor control and uses bluesign approved, performance based technologies Warmth without bulk. Soft breathable all natural fibers. 360 degree degree four way stretch fit for unrestricted movement and won't stretch out. Provides excellent moisture management. Fabric provides UPF 50 sun protection, shielding skin from harmful ultraviolet rays. Excellent thermal qualities in a variety of weather conditions. Machine washable. Import.