This high-performance base layer was made to keep you warm during intense cold-weather activities. Work up a sweat—the wool-blend fabric is wicking on the inside and insulating on the outside, so you feel warm and comfortable even when wet. quick-drying, wool-blend fabric Wool-blend fabric dries quickly, regulates temperature, and helps keep you warm even when it gets wet Varying textures are seamlessly knit into the fabric for breathability and thermal comfort Seamless construction for minimal seams. Where there are seams, they're flat for reduced chafing Size XL EEUC