The long-sleeved T-shirt is made of natural Merino wool material, which quickly wicks away excess moisture, dries well and naturally resists odor. The fine natural fiber from specially bred sheep does not scratch and even a small weight can effectively warm up. The addition of polyamide fiber increases the overall mechanical resistance of the T-shirt. The T-shirt has raglan sleeves, so it fits well on the body and does not restrict movement. It can be used during ski mountaineering, hiking and everyday wear.