ALPINESTARS Supertech V Boots - Black/Fluo Red/White - US 12 / EU 47 2220121-124-47 Nucleon KR-3 Back Protector Bio-mechanical lateral flexi-blade system provides

Bio-mechanical lateral flexi-blade system provides excellent front and rear movement while offering support and protection to the ankle

The silencer is one piece with the tail pipe welded to the deep draw tapered Titanium entrance cap

The sole offers superior durability

Twill main fabric and sandwich visor Structured crown

ALPINESTARS Supertech V Boots - Black/Fluo Red/White - US 12 / EU 47 2220121-124-47 Nucleon KR-3 Back Protector Bio-mechanical lateral flexi-blade system providesAlmost 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