Grab your Smith Optics(R) Adult Pivot Snow Helmet and hit the slopes in comfort! Their unique Bombshell PLUS construction ensures longevity and durability, while their AirEvac Ventilation system releases warm, moist air through external vents to keep you feeling comfortable and dry. Sport your favorite beanie and goggles with a removable goggle lock and beanie compatibility! FEATURES: Perfect for skiing, snowboarding and other snow sports activities Intended for adult wear Self-adjusting lifestyle fit system Bombshell PLUS construction with a multi-impact EPP liner delivers injection-molded ABS for ultimate durability and ding resistance AirEvac 2 Ventilation funnels warm air out through internal channels in the helmet liner and external vents, providing continual airflow and breathability Airflow Climate Control with 13 vents delivers strategically placed vents to expel warm air while minimizing drafts Removable goggle lock Compatible with Beanies Compatible with Outdoor Tech(TM) Audio Systems SIZING: S: 51-55 cm M: 55-59 cm L: 59-63 cm XL: 63-67 cm