The GripGrab Ride Thermal long sleeve base layer is your first choice for all winter activities; from cycling to running to skiing. It uses a two-layer blended fabric to provide excellent thermal regulation, a super soft feel against the skin, and fantastic moisture management and breathability. To keep you fresh and odor-free, this base layer features a polygiene treatment (biocide: silver chloride). It's "Wear More." Wash Less technology uses silver ions to reduce the formation of odor-causing bacteria. The treatment is completely safe to wear on the skin and does not wash out. Less bacteria formation leads to less odor and therefore less frequent washing, which means that Polygiene also significantly extends the life of a base layer. The Ride Thermal Long Sleeve Base Layer will keep you warm day after day as you ride through the winter.