At first glance, this is 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 mildly warm 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, the natural fiber offers optimal performance. The 200 g/m² weight covers a wide temperature range, keeping you warm in icy winter temperatures 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 ergonomic cut are the foundation for a perfect first layer for climbing, speed hiking, trekking, or any activity that requires movement. Excellent moisture management and temperature-regulating properties ensure a comfortably balanced wearing experience. Whether directly on the slopes or while resting at one of the many mountain huts, the natural fiber consistently provides a balanced feel. The merino fiber is odor-neutral. During multi-day hikes, prolonged sitting while traveling, or long 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 with a pleasant body climate.