Men's Lars Monsen Femunden Longs long underwear are 200g/m2 merino wool. Fresh color scheme and details. There is a double layer of material in areas subject to heavier wear, such as the back, knees and inner thighs. The waist has a wool lining. The elastic knit on the sides improves the fit. There are hanging loops for drying. Weight 290 g (M size) Material Main material: 100% merino wool Elastic: 96% wool, 4% elastane Resistance Öko-tex Standard 100 certified. Does not contain harmful chemicals. Care instructions Wash inside out at 40C, with wool shampoo. Stretch to shape, hang to dry. Remember to ventilate after use. Wool is a naturally antibacterial material.