ALPINESTARS Supertech M8 Helmet - Echo - MIPS® - Black/Gray - Medium 8302621-1146-MD Neighbor Hater Slip-On Mufflers Feature advanced acoustical tuning technologies

Feature advanced acoustical tuning technologies for a deep rumbling sound Come with 3" cores encased in proprietary Cobra sound tuning materials with specific acoustical dampening and thermal insulation properties The frequency and location of the perforation patterns in the high-flo cores creates significant sound scattering in the mid frequencies

51mm and 52mm from the pull down menu

quick-drying stretch fabric for moisture wicking and breathability

the spun-louvered core provides the bark and horsepower increase you expect from Cobra

and rib cuffs

ALPINESTARS Supertech M8 Helmet - Echo - MIPS® - Black/Gray - Medium 8302621-1146-MD Neighbor Hater Slip-On Mufflers Feature advanced acoustical tuning technologiesLightweight outer shell is constructed from technologically advanced composite materials for best fit Multiple density inner liner Fitted with E 2, latest generation of MIPS, integrated low friction layer designed to reduce rotational motion transferred to the brain from angled impacts to the head Visor attached to the helmet shell with patented system that will allow easy release in case of crash Adjustable top pad height (Alpinestar's patented A