This Midweight Carhartt Force® Base Layer Crew features classic waffle knit fabric that traps your body’s heat on those cold days. Rugged Flex® fabric moves with you and FastDry® technology wicks away sweat. Smooth flatlock seams and tagless label enhance comfort. The concealed thumb loops keep your sleeves in place when you put on another layer. This base layer top works as hard as you do to keep you warm, dry, and odor free throughout the work day. Chest size: Small (34-36"), Medium (38-40"), Large (42-46"), X-Large (44-48"), 2X-Large (50-52"), 3X-Large (54-56"). Tall Sizes are 2" longer in sleeves and body than regular sizes.