Men's Thermal Pants,Model Base Layer Soft Than Cotton Sexy Underwear Long Johns 95% Modal+5% Spandex Softer than cotton Elastic closure Bulging bag and Low-waist design,have free moving space Sexy Pajamas Shrinkage controlled,they feel like a second skin because of their smoothness Excellent insulation and moisture wicking Outstanding Base Layer Underwear Soft Give You the Best Enjoyment at work at sports at leisure... Note:Machine /Hand wash ,Don't Soak long time