product descriptionconquer the peaks of ambitious competitive sport with the x-bionic® energy accumulator 4.0 melange pants 3/4 women. the new 4.0 generation is the first to feature the retina® ultra-high definition quality for unique accuracy of functionality. for a targeted effect, intelligent functional zones can be positioned even more precisely in the ultra dense knitted fabric. the high-tech underwear for enthusiastic women winter sports athletes integrates a variety of thermoregulatory 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, cool when you sweat, and warm when you are cold - now faster and more efficient than ever. functional zones such as the innerlap airconditioning zone® on the inside of the thighs and the iso-calfpad in the calf area regulate the temperature and increase performance. the expansionknee at the knee joint ensures optimum climate comfort and at the same time offers full freedom of movement.x-bionic® energy accumulator 4.0. melange pants 3/4 women energy accumulator 4.0. technology leader for the highest level of performance in any climate and all weather conditions. high partialkomression® optimises blood circulation and skin cooling. only with x-bionic® 4.0: innovative retina® ultra-high-definition technology. provides ultra-high definition texture, ultra-high density function transmission and ultra-high precision body zoning. award-winning, patented 3d bionic sphere® system with thermosyphon® technology. features complex 3d structures of inner and outer air channels. it cools when you sweat and warms when you are cold. ideo-waistband ideally designed, ergonomically optimized. with a higher cut line in the back area keeps the garment in place even with constant movement. 100% pure swiss engineered. made in italy. 700+ international awards and test wins, 800+ patent registrations for the products with the x.