corfort and good protection protection level: 2 it can prevent the 51 style 7.62mm lead bullet launched by 54 style gun. Light-weighted: pre-marinated by KVLAR129, with weight less than 1500g, decent for wearing. Good performance: better than steel helmet, light weighted, without bumping, little heat-conductive, nonmagnetic, nor electicity-conductive. Not easily discovery by radio.