UM0105-M Carhartt Men's Force Midweight Micro-Grid Base Layer Quarter-Zip Pocket Top This men's thermal quarter-zip top is built to work as hard as you do. The midweight shirt not only keeps you warm, it also wicks away sweat, fights odor, and releases stains. This top can be worn as a base layer in the colder months and has thumbhole sleeves for extra coverage. Mid Weight Force Base Layer for 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 5.4 Ounce, 100% Polyester, Low Mini-Grid 2x2mm