The Craft Active Intensity SS undergarment regulates the body temperature perfectly. It absorbs perspiration quickly and effectively and passes it on to the outer layer, ensuring rapid evaporation. Thanks to the Craft Active Intensity SS underwear, you won't get cold on your body because the shirt doesn't feel wet and stays as dry as possible. Elastic with an ergonomic fit that fits perfectly to the upper body. Seamless fabrics for optimal freedom of movement.