The Flow Form Baselayer ensures maximum comfort during winter activity.  Designed to be worn next to the skin, the baselayer works well to manage any moisture you create whilst exercising. The 4 way stretch fabric allows for great freedom of movement and the seam free design ensures an irritation free fit for maximum comfort. When the cold sets in, slip your thumbs through the thumb loops for extra warmth and coverage.Close fitting Thumb loops Fully seam free 4 way stretch fabric