Experience the thrill of winter sports like never before with the X-BIONIC® ENERGY ACCUMULATOR LIGHT PANTS 3/4 WMN. These high-tech underwear are designed for the enthusiastic winter sports athlete who demands more from their gear. The legendary patented 3D Bionic Sphere® System with ThermoSyphon® technology is at the heart of these pants, now more powerful than ever. Complex 3D structures and Y-shaped elements work together to maximize air exchange. This innovative system cools you down when you sweat and warms you up when you're cold. It's a thermoregulatory powerhouse that keeps your body at the optimal performance temperature, no matter how intense the activity. But the innovation doesn't stop there. The Innerlap AirConditioning Zone® positioned on the inside of your thighs and the ISO-CalfPad in the calf area actively regulate your body's temperature, ensuring you stay comfortable and focused on the slopes. Experience the freedom of unrestricted movement with the ExpansionKn