ALPINESTARS SM5 Helmet - Bond - Silver/Yellow/Green - Medium 8303522-1956-MD Speedster Dual Exhaust System the aerodynamic rear spoiler is

the aerodynamic rear spoiler is designed to crush or break away upon impact

300% longer life than aluminum plates

with tacky grip point to hold goggle in place

Soft comfortable airmesh on the body side of the protector offers maximum breathability and rider comfort

ALPINESTARS SM5 Helmet - Bond - Silver/Yellow/Green - Medium 8303522-1956-MD Speedster Dual Exhaust System the aerodynamic rear spoiler isLightweight outer shell is constructed from a technologically advanced impact resistant thermoplastic The inner and outer surfaces are engineered to minimize the effects of oblique impacts Multiple density inner liner to ensure the correct density in the correct area for enhanced impact absorption Patented visor release system ensures the visor is released with the correct predetermined amount of force, irrespective of the angle of impact Maximized