Shell in two sizes (M and L) printed by hand in Italy. The new composite material used is a mixture of carbon in various weights and aramid fabric. Polystyrene internal protection in two sizes (M and L). The particular shape and construction of different densities, increase the mechanical strength in case of accidental impact. Visor printed and made from a slab floor and then thermoformed. Each cap is unique and optical properties and mechanical strength, without equal. In addition, thanks to this process is not required in the application of the visor lens superimposed as they are already equipped with permanent treatment "anti-fog" and "anti-scratch". D-ring retention system designed and patented by Suomy: the well-tested and reliable double-D ring system ensures stability, security and robustness. How it works: enter the free flap of the strap through the rings. Pulling up to the terminal when the strap firmly pressed against the jaw. Once this is done should no longer be possible to remove your helmet, check that, grabbing the back and turning it on, the helmet can not be pulled over and remains firmly on the head. If the helmet tends to fall out or rotate freely on the head, tighten the strap until you get the right pressure and repeat the test. If after repeating the proof of the failure to effectively tighten the retention system, refrain from using the helmet. Only after checking the tension of the strap to secure the free end of locking it with the snap on the release tab. The snap is used only to secure the free end of the strap to prevent it from flapping while driving. Fixing the release button does not guarantee that the helmet was worn and fastened correctly: the proper tightening of the strap must be verified only through the operations described above. To unfasten the retention system, release the snap and pull the release tab to loosen the clamp. Remove the strap from a free flap of the Rings "D-Rings." Use the tab release only to remove the helmet! Never operate the release tab while driving. If the release system is not working properly, refrain from using the helmet and contact authorized personnel only Suomy.