The Warrior technology is based on highly shock absorbing light composite materials cells. The tangible result is a cat. 2 CE certification with an average shock absorbing factor of 9 KiloNewtons. During certification tests for this kind of protectors, the required value of residual energy must not be over 18 KNs. | Article: Spidi Warrior Back Protector, yellow, Size M | Article: Spidi Warrior Back Protector, yellow, Size M, yellow, Size M