Bell's Span picks up where the Local left off, offering kids a modern twist on skate and BMX style. The fit is tight and right, and with a dial-adjustable fit system, this thing is staying put, no matter how rad you get. - Construction: ABS hard plastic shell with EPS liner - Number Of Vents: 10 - Fit System: Action Fit - Designed for street and skate helmets, this streamlined fit system offers an adjustable, secure fit with the turn of a dial -Weight: 423 grams (size S)