The weakest wool socks made of merino wool and functional materials. - 48% merino wool - 32% polypropylene - 15% polyamide - 5% elastane Sizes S = 35-38 M = 39-42 L = 43-46 The Active Liner sock is a thin, comfortable wool sock that can also be used in combination with a thick sock on the outside. It is light and comfortable, fits well and has a high proportion of wool. Although the sock is thin, it provides insulation and can therefore be used all year round. The sock has good moisture drainage and high wear resistance. Product features Height: Medium Thickness: Our thinnest wool sock Comfortable around the calf; pulls slightly The heel and toe are reinforced Finer knitting above the instep for good insulation and moisture drainage Soft and comfortable Little "smells" even after long-term use Can be used all year round Made in Europe Wash on the wool program Brynje of Norway Brynje is the ultimate underwear that works in any weather. The family business was founded in 1887 in Larvik, Norway. In the 1950s, they developed the first clothing with a mesh construction, which was tested by Norwegian soldiers in the Hardangervidda plateau. Brynje was the first thermal underwear on Mt.Everest, it already protected Sir Edmund Hillary and Tenzing Norgay in 1953. Brynje thermal underwear is still used today by members of expeditions, rescue services, as well as athletes and tourists.