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The X-BIONIC® ENERGIZER MK3 LT BOXER SHORTS WOMEN is the most innovative functional underwear for women who love sports. You immediately feel the technological advantage: ThermoSyphon® system, the next generation of the legendary 3D Bionic Sphere® system, cools when you sweat and warms you when you're cold. Your skin climate is adaptively managed, you save energy and your performance increases. The integrated pad and the Aktiv-Bund® provide more comfort when biking or spinning. Another X-BIONIC innovation: production on precise machines with Retina® ultra-high-definition technology ensures greater density and heightens the effectiveness of all functions.