The long-sleeved functional underwear shirt made of cuddly warm merino wool convinces with its highly functional properties. It not only feels pleasantly soft on the skin, but also regulates the temperature. In addition, merino wool is odour-neutralising, moisture-regulating and warms even when wet. This multifunctional long-sleeved ski underwear with a longer cut back can be worn in winter sports, when hiking or as a warming companion in leisure time.