Giro Helios Spherical Helmet - Matte Sapphire Size:M Proportional Response Geometry: Full size-specific

Proportional Response Geometry: Full size-specific frame geometry

The Mode Memory function conveniently returns the light to the last-selected mode after the light has been turned off

and a modernized profile designed to complement today’s bike geometries

Series: Dura-Ace R9150 Series

Giro Helios Spherical Helmet - Matte Sapphire Size:M Proportional Response Geometry: Full size-specificThe heart of the Helios's extraordinary design and performance is Spherical Technology, which utilizes a ball and socket design powered by Mips, the market leading brain protection system that can help to reduce rotational forces. Spherical Technology allows the helmet's outer liner to rotate around the inner liner during a crash, and also allows Progressive Layering of the inner and outer liners to provide more comprehensive protection and