Suitable for cool and cold weather conditions, this underwear is made of 100 merino wool. It is suitable for activities such as mountaineering, skiing, climbing, trekking and cycling. 230 g of merino wool is used per square meter. Produced without the use of chlorine, which is harmful to nature, this merino wool is 100% natural. Wool naturally prevents the formation of odor. It provides a very good insulation, high performance, soft touch in wet and cold weather. The seams on the shoulder are designed not to come to the upper part of the shoulder, and thanks to this method, the seams that do not fall under the backpack straps do not bother you. Woven from carefully selected yarns, this underwear is extra soft and comfortable to prevent body irritation.