Why choose the Shoei NXR2? The original NXR already was a pure sports performance helmet, designed for those who wished to take it up a notch. But Shoei did not rest on its laurels and they managed to distill everything they learned through years of research and development into the new and improved NXR2! Shoei’s NXR2 offers everything a race/sport rider needs to stay safe on the street and track. When deciding on a new helmet and safety is your top priority you cannot go wrong with this new NXR2. Safety features of the NXR2 A helmet's job first and foremost is to provide protection. Constructed from Shoei’s Advanced Integrated Matrix (AIM) is essentially a mix of various layers of fiberglass making it lightweight, strong and flexible. This ensures an effective impact absorption distributed over the largest possible area. The chinstrap is an important part of the helmet’s effectiveness in a crashand It is also the part that you interact with the most when putting on and taking - Shoei Nxr2 Mm93 Collection Rush Tc-5 Full Face Helmet 2XL Shoei Nxr2 Mm93 Collection Rush Tc-5 Full Face Helmet 2XL Black unisex Fiberglass / fiber mix.