Devold Duo Active boxer shorts combine a fine, organic merino wool on the outside and ThermoLite on the inside, to provide best possible comfort during the cold days of winter. ThermoLite is made from 100% recycled material and is a high-quality functional fiber designed for optimal moisture transport. The merino wool on the outside has outstanding insulating properties, ensuring that you stay warm even if you get wet. The Duo Active base layer is a bestseller due to its comfort, and because the fiber combination makes it some of the best base layers you can wear during winter outdoor activities. - Wide and comfortable elastic waistband - Flat seams for optimal comfort. - Gussets for a more flattering fit. - Lining made from 100% recycled material for extra comfort against wool sensitive skin. - Machine washable and tumble dry safe (Total Easy Care Merino wool).