X-Bionic X-BIONIC Women Twyce 4.0 Bike Zip Short Sleeve Shirt - Opal Black/Arctic White, Small

1. It promotes natural skin-climate regulation with the 200% enlarged ThermoSyphon system, the next generation of the patented 3D Bionic Sphere system. It maximizes your cooling so you save energy and stay productive longer. Dr. Sandra Ueckert, a researcher at the Technical University of Dortmund, explains that endurance athletes consume as much as 97% of their energy to maintain an optimal body temperature of 37° C. ThermoSyphon cools your body when you sweat and warms it when you're cold. 2. The complex 3D structure of air ducts and Y-shaped elements ensures maximum thermodynamics and is supported by other ground-breaking innovations such as the AircomplexZone on the chest and sweat-conducting structures all around. 3. This biking shirt delivers a new experience of enhanced wearing comfort and greater effectiveness thanks to the Dolphin Rider neck and seamless sleeves on the forearms. 4. The new Ideo-Waistband provides reliable support at the Waistband without constricting so everything stays perfectly in position even on long tours. 5. This shirt is a precision instrument for top performance thanks to manufacturing by highly precise state-of-the-art machines in Retina ultra-high-definition quality. It offers significantly more effectiveness than X-BIONIC products of the previous generation.