When the mercury drops and the chill is heavy, our Ribbed Fleece construction creates a protective warmth on your skin. This enhances both wicking efficiency and breathability by generating channels of contact points on your skin to absorb moisture and pull it to the surface of the fabric; speeding up evaporation & the quick-drying process. With an impressive warmth-to-weight ratio you can perfect your layering system by wearing our SILKweight products underneath.