TECH ZX Boxer Size:S the Monza Sport Jacket provides

the Monza Sport Jacket provides versatility year-round

Developed from MotoGP‑proven technology

The central zone of the chest protector directly behind highly perforated impact grid is completely open to allow for maximum ventilation

plus an abrasion-resistant front panel and side foam padding

TECH ZX Boxer Size:S the Monza Sport Jacket providesAlpinestars TECH ZX Series BOXERS are constructed with LENZING FR, an innovative, sustainably produced viscose fiber that provides exceptional flame resistance and protection against heat transfer. This Formula 1 derived underwear is extremely lightweight and thin, and designed to be incredibly soft to the touch, offering greatly enhanced comfort when wearing beneath mandatory underwear layers. Certified to FIA 8856 2018 homologation standard for