Designed for road and gravel cycling adventure, the Giro Agilis helmet combines a well-ventilated design with slightly deeper coverage. It's built for comfort for long and short rides alike. S- 51-55cm, M 55-59cm, L 59-63cm. Easy-to-use Roc Loc adjustment system lets you dial in a custom fit. Lightweight In-Mold Construction fuses a polycarbonate outer shell with a foam liner. Giro's In-Mold process enhances durability and ventilation without adding excess bulk. Wind Tunnel vents with internal channeling allows cool air to flow in. Multi-Directional Impact Protection System (MIPS) for extra safety in certain impacts. MIPS provides an added layer of protection that reduces rotational forces in an impact. Imported.