Alpinestars Supertech M5 Solid Helmet Size:XS 0 - 100 psi pressure

0 - 100 psi pressure gauge

Ventilation holes

Conveniently attaches together for safe transportation when doing any activities that are on frozen lakes

along with the option to add a back protector

Stronger Housings by DesignYou think you can find better housings that GDP housings

Alpinestars Supertech M5 Solid Helmet Size:XS 0 - 100 psi pressureFEATURES Constructed from a special lightweight and impact resistant thermo injected polymer, results in a significantly lighter helmet with increased structural strength and outer shell uniformity in two outer shell sizes Inner shell includes multi density advanced EPS construction for optimal impact absorption performance in three sizes Features two concepts for impact energy management including a resin coated inner shell surface that noticeably