The Merino Warm Roll-neck is made of 100% Merino wool. Warm, even when stopping for a break - Merino wool evens out fluctuations in temperature. It also reduces odour problems and need for washing. - Material weight 250g/m² - Made in Kärsämäki, Finland - Machine wash at 30ºC, preferably with a wool detergent, form when wet and air dry - Letter size / EU women's size / EU men's size: - XXS 36 46 - XS 38 48 - S 40 50 - M 42 52 - L 44 54 - XL 46 56 - XXL 48 58 - 3XL 50 60 - 4XL 52 62 All chemicals used in dyeing and finishing this product are Oeko-Tex 100 certified.