UH0111-M Carhartt Men's Force Heavyweight Heathered Knit Base Layer Quarter-Zip Pocket Top Whether you work on a winter road crew or hot factory floor, this men's half-zip thermal shirt helps you tackle the job in comfort. The heavyweight shirt not only keeps you warm, it also wicks away sweat, fights odor, and releases stains. It's made of the perfect blend of polyester and spandex to give you the range of motion you need. Heavy Weight Force Base Layer for extreme cold weather FastDry wicks away sweat Rugged Flex technology for ease of movement Fights odor Smooth flatlock seams and tagless label enhance comfort Convenient zip pocket on chest Mock-neck collar with quarter length zipper Concealed thumb loops Fabric 7.7 Ounce, 95% Polyester, 5% Spandex, Pique Melange