Optimize your energy management while running with the innovative X-BIONIC® EFFEKTOR® 4.0 RUN SHORTS MEN featuring an Ideo waistband, the running shorts of the new X-BIONIC-4.0 generation for the innovative athletic man. The energy released by the earlier onset of sweat cooling flows directly into your running performance. From the very first training session with these men's shorts, you will instantly feel the technological advantage of ThermoSyphon®, the latest version of the legendary, patented 3D Bionic Sphere® System. The integrated X-BIONIC® Partial Compression® applies gentle pressure on the skin through bridges. This protects you from early muscle fatigue while maintaining the crucial cooling effect of sweat. Iso-Pads over the hip bones provide targeted insulation to protect the underlying organs from the cold. The interaction of the Innerlap Airconditioning Zone, a special cooling area on the inner thigh, along with the Sweat Traps® supports your performance with optimized moisture transport and cooling effect. This product of the X-BIONIC®-4.0 generation is manufactured using ultra-high-resolution Retina® technology. You will feel the high effectiveness density, intense functional transfer, and precisely defined functional zones.