The latest advancements in head protection come from MIPS Spherical; replacing the MIPS liner with a two-piece shell and dual-density Nanobead EPS foam to provide the highest levels of safety without compromising fit or ventilation. Deep internal channels and large vents keep the air flowing and the Roc Loc 5+ Air Fit retention system allows three-way tuning to dial in the perfect fit. Combining style and performance, the Giro Aether MIPS Road Helmet offers revolutionary new MIPS Spherical for the highest levels of protection. Dual-density Nanobead EPS foam manages impact energies and the MIPS Spherical technology sits between the two layers of foam instead of against the head. The result? All the protection of MIPS without a compromise on fit, comfort or ventilation. The external six-piece shell is built around large vents, which have improved structural integrity thanks to the 'Halo' running through the helmet. Deep internal channels make for an airy feel so your head will stay cool on the hottest days and the longest climbs. Giro's Roc Loc 5+ Air fit retention system makes for easy adjustments mid-ride, and provides a precision fit thanks to three-way tuning. When the sun goes down and you no longer need your sunglasses, you can store them securely in the docking ports.