When the mercury hits the bottom of the outdoor thermometer with a clunk, count on the Carhartt Force Heavyweight Base Layer Long-Sleeve Quarter-Zip for Men to keep you warm in the brutal cold. This heavyweight Force base layer is made of thick, 7.7-oz. 95% polyester/5% spandex to hold and retain your body heat. Equipped with FastDry technology for moisture-wicking, quick-evaporating performance to keep you dry and comfortable while you work. Plus, Rugged Flex stretch technology delivers a give to the fabric for freedom of movement. An odor-fighting treatment keeps you feeling fresh for longer. For easy-wearing comfort, the Carhartt Force Heavyweight Base Layer men's quarter-zip top also features smooth flatlock seams and a tagless collar. Concealed thumb loop. Machine washable. Imported. Manufacturer style #: MBL111. 7.7-oz. 95% polyester/5% spandex Heavyweight layer maintains warmth in the brutal cold FastDry for moisture-wicking performance Rugged Flex fabric adds ease of movement Odor-fighting treatment Smooth flatlock seams Tagless collar Concealed thumb loop