Giro Aries Spherical Helmet Size:S 51-55cm a 9 tooth 1-piece driver

a 9 tooth 1-piece driver and slim low flanges

100 TPI nylon casing is upgraded with a Kevlar® bead-to-bead anti-puncture protection layer and an inner shield to provide robustness and durability

an extended 350-hour service interval

The machined-aluminum design features a removable handle

SPECIFICATIONS

Giro Aries Spherical Helmet Size:S 51-55cm a 9 tooth 1-piece driverA helmet that feels like it isn't there: the all new Aries Spherical is like nothing before. Its sleeker form and lighter weight (only 270 grams in size medium, CE certification), deliver sensational comfort and cooling power. Spherical Technology, our ball and socket design powered by Mips, adds protection by redirecting energy away from the brain in certain impacts, and Progressive Layering with dual densities of Nanobead EPS foam adds more