Moisture-Wicking Fabric: Long johns for men feature a 100% CPT Performance polyester interior and 70/30 polyester/merino wool exterior with Silvadur Intelligent Freshness for odor control Regular Fit: Our men’s long underwear boasts a tagless design for a smooth, ultra-comfortable fit; Front and back rise come in true sizing for accurate fit Efficient Design: Our men's thermal underwear features convenient gussets and a comfortable non-itch waistband that maintains coverage and allows for freedom of motion during various activities Comfortable Base Layer: Our thermal leggings for men feature a dual-layer fabric that traps air between the layers to provide a natural barrier of warmth Multipurpose Apparel: Our men’s long johns allow for minimal layering in cold to very cold conditions during medium- to high-exertion activities; Perfect for casual or active wear