This high-tech underwear has been specifically designed for enthusiastic winter sports enthusiasts and integrates a variety of thermoregulating and protective features. The legendary patented 3D Bionic Sphere System with ThermoSyphon technology is more powerful than ever: complex 3D structures and Y-shaped elements maximize air exchange, cooling you when you sweat and warming you when you freeze - faster and more efficiently than ever before. This ensures you always feel comfortable and can fully unleash your performance. Functional zones such as the Innerlap AirConditioning Zone on the inner thighs and the ISO-CalfPad in the calf area regulate temperature and enhance performance. The ExpansionKnee at the knee joint provides optimal climate comfort while offering complete freedom of movement. This allows you to fully enjoy every turn, jump, and descent without your underwear restricting you. The partial compression exerts targeted pressure on your muscles and dampens muscle vibrations, helping you recover faster and feel rejuvenated after an intense day on the slopes or in deep snow. With the innovative Retina® technology, you also feel like you're wearing a second skin - so comfortable and light that you can hardly feel the pants.