Arai Classic-V Open-Face Helmet - Copper Frost Size:XS The back protector bag is

The back protector bag is compatible with D30 "Central Back" (Level 1) and "Full Back" back protector

4mm as per our race suits

with all the luxury and quality you expect from this brand

Designed to keep your hands safe inside the gloves

Arai Classic-V Open-Face Helmet - Copper Frost Size:XS The back protector bag isOne piece, multi density EPS line Optimized from decades of research and development for maximum protection throughout the entire liner. Designed in concert with Arais proprietary outer shell, the multi density EPS beads are molded into a single liner, maximizing energy absorption requirements as needed in each area of the helmet. This tuning maximizes impact energy absorption ability while maintaining a uniform and compact helmet. Focus on protection