"Full Description:\nBecause 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. <br><br><strong>Size:</strong>\n\n<ul>\n\t<li>Small - 51-55cm</li>\n\t<li>Medium - 55-59cm</li>\n\t<li>Large - 59-63cm</li>\n\t<li>XLarge - 63-97cm</li>\n</ul>\n\nFeatures:\n\u003cul>\n\u003cli>Removable goggle strap lock for streamlined shell when goggles are worn under helmet\u003c/li>\n\u003cli>Beanie compatible\u003c/li>\n\u003cli>Available in Round Contour Fit to better match rounder head shapes\u003c/li>\n\u003cli>AirEvac ventilation system integrates with Smith goggles for fog-free lenses\u003c/li>\n\u003cli>Designed for ultimate integration with Smith goggles for maximum comfort and venting\u003c/li>\n\u003cli>MIPS Brain Protection System reduces rotational forces caused by angled impacts to the head\u003c/li>\n\u003cli>Self-adjusting lifestyle fit system flexes to match your head shape for maximum comfort\u003c/li>\n\u003cli>Removable bombshell ear pads for form-fitting comfort\u003c/li>\n\u003cli>Advanced ABS construction for increased impact protection and all-around durability\u003c/li>\n\u003cli>Select colorways offered without MIPS® system\u003c/li>\n\u003cli>Dual-certification all-season use\u003c/li>\n\u003cli>Eight fixed vents for consistent airflow\u003c/li>\n\u003c/ul>\n\nSpecifications:\n\u003cul>\n\u003cli>Weight (Size M, Non-MIPS®): 16 oz / 450 g\u003c/li>\n\u003cli>Weight (Size M, MIPS®): 18 oz / 500 g\u003c/li>\n\u003cli>Certification - ASTM F 2040 CE EN 1077:2007 CLASS B\u003c/li>\n\u003cli>Vents - 8\u003c/li>\n\u003c/ul>\n"