• Additional protection of the lower area of the helmet with a second polycarbonate shell • Optimal adaptation to the contour and shape of the head with the uvex 3d ias 3.0 system, including height adjustment • The fas system strap can be adjusted gradually to the shape of the head easily and precisely • Aerodynamic ventilation design with 24 ventilation channels • Padded lining material with texture for better ventilation: removable and washable