The highly-efficient thermoregulation of the 3D Bionic Sphere® system on the forehead provides a constant pleasant body climate. It cools at high and warms at low temperatures. Sweat Traps® catch sweat before it even starts running and support temperature equalizing through well-aimed evaporation. The highly elastic band adapts to every head form and guarantees optimal wearing comfort. The headband ensures effective management of temperature and moisture. The new 4.0 generation is the first, that offers Retina® Ultra-High-Definition-Quality for highest functional accuracy. The result are thermoregulating function zones which are integrated precisely into the extremely thick fabric.

+ constant pleasant body climate through thermoregulation
+ Sweat Traps® catch sweat
+ simple adaption through highly elastic band
+ highest function accuracy through Retina® Ultra-High-Definition-Quality