Alpinestars Supertech R Boot Size:40 D3O® ankle inserts reduce transmitted

D3O® ankle inserts reduce transmitted impact forces while the oil & slip-resistant rubber outsole ensures you stick every trick

Go-Pro® mounting capability

Push-Pull tri-fleece liner

It easily fits over any riding jacket in case you find yourself caught in a downpour

Tech mesh chassis with mechanical stretch combined with polyfabric 450D perforated in key areas including the chest panel

Alpinestars Supertech R Boot Size:40 D3O® ankle inserts reduce transmittedAlmost 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 bellow, a redesigned top gaitor, a new shifter and shin