Layer on the heat without the bulk in the Duofold(R) Men's Flex Weight Pants. These Varitherm base layer pants are lightweight and give a second skin feel. Made with Champion Vapor technology with X-Temp(TM), it dries faster as your body heat rises, allowing you to stay warm, but cool at the same time. The chafe-resistant stitching and no-bind elastic waistband will keep you comfortable all day in the Men's Flex Weight Pants. FEATURES: Varitherm base layer Lightweight, second skin feel Champion Vapor technology with X-Temp(TM) Moisture wicking Quick drying Ultra soft brushed back fabric Close-to-the-body flexes and stretches for total mobility Chafe-resistant stitching No-bind elastic waistband Functional fly close