At first glance, this appears to be a simple underwear set in a classic style, consisting of a long-sleeve shirt and underwear. However, for those who want to wear the same outfit on frosty days as well as on mild summer days, our functional set is an excellent choice. The unique fiber structure of merino wool insulates in the cold and cools in the heat. It provides ideal thermal regulation for the leg area on the ski slopes under ski pants or in summer under a softshell jacket. In both cases, it offers optimal performance from the natural fiber. The 200 g/m² weight covers a wide temperature range, keeping you warm in icy winter conditions and lightly cooling in late spring as the first warm summer days arrive. In all scenarios, the pants feel soft against the skin without scratching. No pinching, no chafing, no skin irritations. Flatlock seams, a gusset in the crotch, an elastic comfort waistband with a distinctive logo print as a subtle eye-catcher, and an ergonomic cut form the basis for a perfect first layer for climbing, speed hiking, trekking, or any movement-intensive activities. Top moisture management and temperature-regulating properties ensure comfortable wear. Whether directly on the slopes or during a break at one of the many mountain huts, the natural fiber consistently provides a balanced wearing experience. The merino fiber is odor-neutral. On multi-day hikes, prolonged sitting while traveling, or extended hours in the office, unpleasant odors are hardly absorbed. Odor-resistant, antibacterial, and easy to care for, the underwear can be hand-washed on a bivouac tour and can be worn for more than one day while maintaining a pleasant body climate.