For long winter days, children need cozy thermal underwear that fits so well and is so stretchy that they won't want to take it off. This technical, lightweight functional underwear has been specially designed for high-mobility activities in cold weather, offering seamless construction for maximum comfort and optimal moisture management. The higher-cut waistband at the back ensures a perfect fit even during intense movement. Thanks to the seamless design, the leggings feel pleasant against the skin. The functional material is tailored to the individual body areas, quickly wicking away moisture and providing excellent ventilation exactly where the body tends to overheat. The leggings have been treated with Effect by ODLO silver ion technology, which offers lasting antibacterial protection against unpleasant odors—allowing young adventurers to always feel fresh, even when they work up a sweat.