Our Men's CONTOURweight base layer fabric follows the contour lines of your body providing a superior warmth-to-weight ratio for outdoor activities throughout the colder months. Our griddedWaffle Fleece base layer fabric construction performs both wicking efficiency and breathability by generating channels of contact points on your skin that absorb moisture then push it through to the outside of the fabric. This speeds up the evaporation & quick-drying process while the air channels trap warm air so you don't get chilly. This construction also reduces fabric weight while increasing warmth and compressibility, so it's a win-win-win-win! With our impressive warmth-to-weight ratio you can perfect your layering system by also wearing our SILKweightor TEMPOweightbase layerfabricproducts underneath.