X-BIONIC ENERGIZER 4.0: extremely lightweight undergarment with a round collar, worn either alone or under your shirt, it maximizes the cooling effect of your perspiration, thus increasing your endurance and boosting your athletic performance
THERMOSYPHON: the next generation of the legendary 3D Bionic Sphere System technology works on the chest and the back, where your body can most effectively use the cooling effect
3D Y-shaped FABRIC STRUCTURE: creates a stable network of channels for intensive air exchange. It cools when you sweat and warms you when you're cold. Thermodynamic effects improve your skin-climate management
ALL-IN-ONE TECHs: Sweat Traps, Air-Conditioning Channel, AirComPlex-Zone at the sternum and ventilation-optimized Air Guides. Tailored higher in the back area, the ergonomically optimized Ideo-Waistband keeps your shirt in place even during continual activity
X-BIONIC 4.0-generation products: this top is manufactured using ultra-high-resolution Retina technology. You benefit from highly effective density, intensive functional transmission and precise separation of functional zones