Made of specially formulated Polymer Triple Corrugation for enhanced strength. Provided with Side Slots for fitting face and hearing protection accessories. Adjustable Chin Strap Comes with Ratchet type adjustment to suit most head sizes. The Head band is made of non-irritant and soft fabric to provide maximum comfort to the user. The four point attachment Cradle within the shell has a unique angular placement to provide optimum shock absorption. Conforms to IS