Carhartt Men&';s Base Force Midweight Classic Bottoms (MBL115) are thermal base layer bottoms featuring classic waffle knit fabric for easy-wearing warmth. Designed to keep you warm, dry, and comfortable, these men&&';;s thermal bottoms use FastDry and Rugged Flex technologies and odor-fighting fabric. FastDry wicks away sweat and Rugged Flex is for ease of movement, giving your legs a full range of motion. a Smooth flatlock seams and tagless label enhance comfort. a Waffle knit traps heat, fast dry wicks away sweat and fights odor. a Concealed dry low-stitch waistband and contoured front for comfort. a Rugged flex technology for ease of movement. a Strategic seam placement for maximum comfort and reduced chafing.