ALPINESTARS SMX-S Boots - Black - US 4 / EU 37 2223517-1100-37 Astar Racer Shorts This is a full system

This is a full system constructed from a high-grade and race-proven lightweight titanium alloy that provides an impressive increase in power across the entire rev range while also improving torque delivery

Heavy gauge American steel is laser cut

Back by a 3-Year limited warranty for any material or manufacturing defects

Designed to be stronger on the bottom-to-middle part of the powerband

ALPINESTARS SMX-S Boots - Black - US 4 / EU 37 2223517-1100-37 Astar Racer Shorts This is a full systemDurable microfiber upper construction that has superb flexibility and a comfortable feel Ergonomic new forefront boot shape is streamlined to better control and feel of the motorcycle controls Thermoplastic Polyurethane (TPU) shin plate protector is race developed for superior impact and abrasion resistance Lateral Thermoplastic Rubbery (TPR) injected ankle support construction provides superior comfort and impact resistance TPU double density ankle