SmartWool Men's Classic Thermal Bottom

Made of relatively thick, 250g/m² Merino wool, these long johns are a sure-fire choice for winter use. They even out fluctuations in temperature - stopping for a break on a frosty day is much more comfortable with these than with synthetic alternatives. Slim fit - skin tight even for slim users 100% pure Merino wool Flat lock seams for reduced chafing risk Machine wash