A helmet that feels like it's not there: The brand new Aries Spherical is unlike anything before. Its sleeker shape and lighter weight provide sensational comfort and cooling performance. The Spherical Technology, our Mips-supported spherical design, offers additional protection by redirecting energy away from the brain during certain impacts. The double-density progressive layering of the nanobead EPS foam ensures more comprehensive energy management. 24 wind tunnel ventilation openings are maximized by the AURA II reinforcement arch, while the soft DryCore forehead padding wicks away sweat and, combined with a network of intricately designed deep internal channels, enhances comfort. From the proven reliability and adjustability of the Roc Loc 5+ Air fit system to the full coverage of the lower body for improved durability, and the meticulous production quality - the Aries represents cutting-edge performance, protection, and style. Details: - In-mold polycarbonate shell with EPS liner - Optimal ventilation through deep internal channels - Roc Loc 5+ Air fit system - 275 g in size M.