At first glance, this is a simple underwear set in a classic style, consisting of a long-sleeve shirt and briefs. However, for those who want to wear the same outfit on frosty days as well as on lukewarm summer days, our functional set is the perfect choice. The unique fiber structure of merino wool provides insulation in the cold and cooling in the heat. It offers 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 delivers optimal performance. The 200 g/m² fabric weight covers a wide temperature range. It keeps you warm in icy winter temperatures and lightly cools in late spring, as the first warm summer days arrive. In all scenarios, the pants feel soft against the skin and do not irritate. 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 provide 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 comfortable wear. Whether directly on the slopes or during a break at one of the many mountain huts, the natural fiber consistently creates a balanced wearing experience. The merino fiber is odor-neutral. On 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 briefs can be hand-washed during a bivouac tour and can be worn for more than one day with a pleasant body climate.