X BIONIC Helmet Cap 4.0 Beanie Unisex

Whether you wear it under a helmet or alone: with the HELMET CAP 4.0 beanie you enjoy a limitless feel-good climate and optimal wearing comfort thanks to functional performance zones. INSULATION Zones prevent heat loss from the top of the head, and the legendary patented 3D Bionic Sphere system allows adaptive thermoregulation by cooling when you sweat and warming up when you're cold. The 3D Bionic sphere system with Thermosyphon warms up when you are cold, cools when you are hot. EARCOMP ZONE. Ensures perfect ventilation in cold weather. Sweat traps absorb moisture before it is perceived, evaporate and eliminate it under the dynamic effect of heat. Retina technology delivers ultra-high resolution texture, ultra-high density and ultra-precise body zoning.