ALPINESTARS Supertech V Boots - Black - US 10.5 / EU 45 2220121-10-45 Classic Deluxe Exhaust System while the end cap is

while the end cap is made of carbon fiber

Light housing measures 2-3/8" L overall

Reduces sound output as much as 1

High-quality replacement components

ALPINESTARS Supertech V Boots - Black - US 10.5 / EU 45 2220121-10-45 Classic Deluxe Exhaust System while the end cap isAlmost every component of the Supertech R Boot, Alpinestars definitive racing boot as worn by a roster of champions past and present, has undergone a rigorous program of upgrades to sharpen its performance features even further. Featuring innovations derived using feedback from Alpinestars involvement in top flight racing, key elements include a newly redesigned front flex area, a redesigned rear protection and the performance of this boot to a new