Built to stand up to the demands of hardcore riders, the Smith Vantage Helmet delivers full coverage protection while improving ventilation.. . AirEvac 2 ventilation allows your goggles and helmet to work as one fully integrated system constant airflow drives warm air away from your goggles through external vents and internal channels to keep your lens clear. Hybrid Shell construction combines tough Bombshell ABS construction and superlight in mold technology to deliver a lightweight, low profile, perfectly fitting helmet. Adjustable Boa FS360 fit system features both forward and lateral adjustment, allowing you to get the perfect fit. Nanosilver performance lining helps keep your helmet clean and comfortable with its silver based anti microbial properties. Snapfit ear pads provide a comfortable seal from cold weather easily removable for maximum cooling on warm spring days. Goggle clip on the back of the helmet keeps your goggles secure, even after sending it head over heels through blower powder removable for weight reduction or a cleaner silhouette when wearing your goggles underneath the helmet. Sleek, low profile brim provides extra protection against sun and weather. Compatible with Skullcandy audio systems not included. Medium, 55 59 cm.