Specifications Smith Mission MIPS Mens Helmet 2019-20's Specs PROTECTION Lightweight in-mold construction Aerocore™ construction featuring Koroyd® Regulator adjustable climate control 14 vents FIT Adjustable dial fit system (DFS2) Snapfit SL ear pads INTEGRATION AirEvac 2 ventilation Outdoor Tech™ audio systems available DIAL FIT SYSTEM (DFS2) CERTIFICATION: ASTM F 2040, CE EN 1077:2007 CLASS B WEIGHT: 17.5 OZ / 450 GRAMS