Combining the design features of “combination of power and speed”, “continuation of the trend of the times” and “enhancement of the safety factor”, the new full helmet of the classic S series was born out of heritage. The new S371 not only inherits the classic helmet shape of the traditional full helmet, but also adds new technology materials and a new generation of aerodynamic design, not only to improve wearing stability, but also to reduce the feeling of head pressure and the problem of heat gathering in the helmet body.