Decision Layer. This forms the first and most essential layer of the system. It cools when you sweat and warms when you"re cold. With higher levels of activity, a thin, cooling film of moisture is maintained while excess sweat is wicked away. With light activity, the Decision Layer insulates. The result: The body remains perfectly regulated and the athlete is able to perform powerfully for longer. Technologies ISO-ShoulderTM The wavelike structure of the ISO-ShoulderTM lies over the shoulders, keeping the body warm and guarding against chills. 3D-BionicSphere® System in the chest area Without giving the body the impression that it is getting cold, fresh air from the 3D-BionicSphere® System in the chest area cools down the body temperature. The air is tempered inside the ducts, working like a sluice. Hot, moist air is disposed of using the dynamics of body warmth and then replaced with new fresh air. SweatTraps® - 40 cm² surface area for sweat transport Since a lot of sweat is produced in the chest area, SweatTraps® are placed strategically all around the 3D-BionicSphere® System in order to speed the transport of moisture. AirComplex-Zone - increased insulation to 72 cm² In the solar plexus, directly under the twelfth vertebrae of the thoracic region, important nerves receive signals that influence one"s entire well-being. Our sports wear protects this sensitive area with special channels. Locked-in warm air insulates optimally in the cold. The system"s structure processes excess sweat from physical activity and ensures appropriate coolness in the core.