Icon Airmada Chainbrain Helmet Working the saw is an acquired taste. Few have the stomach for the toothy language of the chain. You give the pull cord a good jerk, kill the choke, and then drop the bar. Once engaged, the saw devours with the intensity of a puppy discovering an unattended bag of kibble. There is no strength strong enough to hold back its voracious hunger. The goalie mask is just for panache. Features ALL WORLD STANDARD, MEETS OR EXCEEDS THE FOLLOWING DOT FMVSS 218 (US), ECE 22-05 (EUROPE), SAI AS1698 (AUSTRALIA) SG (JAPAN) SAFETY AND TESTING STANDARDS. DOES NOT SHIP WITH SAI OR SG CERTIFICATION STICKERS UNLESS PURCHASED FROM AN AUTHORIZED DEALER IN THAT COUNTRY. INJECTION MOLDED POLYCARBONATE SHELL FOR STRENGTH AND DURABILITY RECESSED TWIN CHANNEL SUPERVENT WITH INDUSTRY LEADING INTAKE AND EXHAUST PORTS FOR INCREASED COOLING FOG-FREE ICON OPTICS SHIELD WITH PROLOCK SHIELD LOCKING SYSTEM ADJUSTABLE CHIN AND FOREHEAD VENTING SYSTEM MAINTAINS CONTINUAL TEMPERATURE FOR INCREASED COMFORT IN ANY RIDING SITUATION RAPID RELEASE SHIELD CHANGE SYSTEM REMOVABLE MOLDED BREATH DEFLECTOR HELPS PREVENT FOGGING FULLY REMOVABLE WASHABLE HYDRADRY MOISTURE WICKING INTERIOR EASY ADJUST ERGO VENT SWITCH FOR SUPERIOR AIRFLOW CONTROL AVAILABLE IN FOUR SHELL SIZES WITH AN ICON EXCLUSIVE LONG OVAL HEADFORM FOR ULTIMATE FIT AND COMFORT