Because no two people are the same, the Smith Scout MIPS Ski and Snowboard Helmet lifestyle fit adapts to your head. It also blends the everyday hardshell durability with the latest impact-absorbing tech so you can dial in your bag of tricks in the park or anywhere on the hill. Pull the ear pads come spring, or add a beanie on the coldest storm days. No matter the weather, the eight fixed vents keep the air flowing for fog-free goggles and climate-controlled comfort. All-season certification means you can wear it in the skate park and on your bike, too. Features: Beanie compatible Eight fixed vents for consistent airflow Removable goggle strap lock for streamlined shell when goggles are worn under helmet Dual-certification all-season use Select colorways offered without MIPS system Advanced ABS construction for increased impact protection and all-around durability MIPS Brain Protection System reduces rotational forces caused by angled impacts to the head Removable bombshell ear pads for form-fitting comfort Available in Round Contour Fit to better match rounder head shapes AirEvac ventilation system integrates with Smith goggles for fog-free lenses Designed for ultimate integration with Smith goggles for maximum comfort and venting Self-adjusting lifestyle fit system flexes to match your head shape for maximum comfort Specs: Vents - 8 Certification - ASTM F 2040 CE EN 1077:2007 CLASS B Weight (Size M, MIPS): 18 oz / 500 g Weight (Size M, Non-MIPS): 16 oz / 450 g Size: Small - 51-55cm Medium - 55-59cm Large - 59-63cm XLarge - 63-97cm