The Holt is built for all-season toughness thanks to its bombshell construction. The proven fit and reliability of the Holt will get you from the park to the backcountry and back.PRODUCT FEATURES Bombshell construction Airflow climate control 14 vents All-season use Self-adjusting lifestyle fit system Bombshell ear pads AirEvac ventilation Removable goggle lock Outdoor Techa;"A audio systems available Weight (Size M) 19oz / 550 grams Certification: ASTM F 2040, CE EN 1077:2007 CLASS B, CPSC, CE EN1078