Is running your passion? Enjoy it more than ever. With the X-BIONIC INVENT 4.0 RUNNING SPEED PANTS WOMEN, you can rely on high-tech comfort to increase your performance. The new 4.0 generation is the first to feature the Retina ultra-high definition quality for maximum accuracy of functionality. The weight-optimized pants are specially designed for women runners. The integrated legendary patented 3D Bionic Sphere System provides adaptive temperature compensation with precisely positioned functional zones. It warms when you are cold and cools you when you sweat. Perfectly positioned Sweat Traps absorb excess perspiration and allow it to evaporate for accurately targeted cooling. The proven Innerlap AirConditioning Zone in the inner area of the thighs and the targeted insulation of the ISO-Pads ensure optimal climate and wearing comfort.