X-bionic Bondear Cap 4.0 Black

The X-BIONIC® BONDEAR CAP 4.0 cap guarantees you perfect thermoregulation thanks to innovative technologies.

The new generation 4.0 is the first to have the Retina® technology for a further improved positioning of functional zones.

The insulation zones prevent heat loss through the top of the head and the patented 3D Bionic Sphere® system allows thermoregulation by cooling you down when you sweat and warming you when you are cold.

Sweat Traps® capture sweat before it starts to slip over the skin. On the temples, the AirConditioningSpot absorbs excess moisture, allowing it to evaporate outside while avoiding overcooling.