The Norma helmet by STR is made of Polycarbonate, which, thanks to the Anti-UV enhancing capability of the protective varnish, offers protection to the color from the sun's rays.

Additionally, the air vents placed on all STR helmets create a ventilation system, improving the rider's sensation by offering comfort and driving pleasure.

Furthermore, the hypoallergenic, removable, and antibacterial pads (inner lining) are washable.