Layer up this season with the Heavyweight Stretch Long Sleeve Top from Columbia. This heavyweight base layer features an Omni-Heat Thermal Reflective liner to keep you nice and toasty out on the slopes. Omni-Wick Technology keeps you dry and comfortable lap after lap, while the antimicrobial treatment keeps you stench free wear after wear. The Heavyweight Stretch Long Sleeve Top also features ergonomic seaming and the flat lock construction keeps you chafe free during extended wear.