is a Japanese company that designs and manufactures motorcycle helmets and other helmets for motorsport. It was formed in 1926 by Hirotake Arai as a hatmaker. Currently, Michio "Mitch" Arai runs the company and his son, Akihito, is also involved. All of their helmets meet or exceed the Snell Memorial Foundation safety standards.
Every Arai helmet is hand-built.
Arai has been ranked first in customer satisfaction in all ten annual J. D. Power and Associates Motorcycle Helmet Satisfaction Studies. It was also first (or tied for first) in three of four categories: Overall Satisfaction, Ventilation, and Styling.
Arai competes with high-end helmet brands such as AGV and Suomy of Italy, Shark of France, Schuberth of Germany, and fellow Japanese maker Shoei.
Richard Hammond of Top Gear was wearing an Arai helmet when the jet powered car he was testing flipped at 288 mph. His head was one of the parts of the car which dug into the ground still going over 200 mph. He survived the crash.