Fibre Metal Climbing Style Safety Helmet, Non-Vented, Ratchet, WhiteProprietary suspension technology distributes force at impact on shell and helps it to be absorbed in the inner shell and not by the wearers head The helmets foam liner is EPS foam embedded with advanced non Newtonian material for excellent off the crown impact absorbing performance Knitted suspension strap with liquid crystal polymer (LCP) inlay yarns that provide leading impact absorbing performance and function as the impact indicator in the helmet