Our premium men's thermal underwear is lightweight, soft, and breathable. Designed to keep you comfortable all day long, our merino wool underwear is a key piece of our perfect layering system. Merino wool's natural, super-fine fibres allow for unmatched breathability and insulation, keeping you comfortable and dry no matter the conditions. Shop a variety of styles including merino wool boxers, men's briefs and trunks - all are odor-resistant and easy to care for, making them the ideal option for travel, everyday wear, and all of your outdoor activities. So grab a pair of our merino men's underwear and start your next adventure! Don't forget about our collection of layering options like men's leggings, base layers and mid layers. Shop now, and experience the comfort of our layering system.