At the heart of the Helios' exceptional design and performance is Spherical technology, which uses the unique ball-and-socket design from MIPS, the leader in head and brain protection. Spherical technology allows the outer helmet liner to rotate around the inner liner in the event of a fall. At the same time, the progressive layering system of the two shells provides full-coverage protection and performance. In addition to enhanced head protection, the Helios' 15 vents provide optimal ventilation, further enhanced by a patented Roc Loc 5 Air Fit system. The antimicrobial Ionic+ padding not only has the highest antimicrobial sweat-absorption properties, but also ensures maximum comfort. The Helios is perfect for all road and gravel adventures. Special features: Reflector(s). Intended use: road bike / cyclocross. Mark of conformity: EN 1078. Weight: 270 g. Visor / visor: without. Weight specification size M. Padding: anti-bacterial padding. Material: in-mold polycarbonate shell with progressive Nanobead EPS inner shell, fully covered hardbody EPS shells. Adjustment system: Roc Loc 5 Air. Helmet construction: In-Mold + MIPS. Function: with strap adjustment system. Ventilation openings number: 15.