Reflective straps and the integrated plug-in LED at the back of the head ensure better visibility. The protective material EPS is directly foamed into the polycarbonate shell, resulting in a lightweight helmet construction with maximum impact resistance and the perfect fusion of the EPS inner layer and PC outer layer. The Uvex IAS system allows for adjustment of the helmet's width, as everyone has their own unique head shape. Heads, however, differ not only in circumference but also in height. Therefore, the Uvex IAS-3D system offers the additional possibility for precise adjustment to individual head height. The fast-adapting system strap can be easily and continuously adjusted to fit the shape of your head. This ensures that the helmet stays securely in place in all situations, with the strap always in the optimal position. The Uvex Monomatic comfort closure can be adjusted in multiple stages with just one hand. The closure is twist-proof and features an opening protection in case of a fall. For pressure-free fit, the Uvex Monomatic is equipped with a comfort padding.