The Giro Flume Youth Bike Helmet is constructed of a foam layer which has been bonded to a microshell using an inmold process, making the helmet both sturdy and solid. It is equipped with an easily adjustable Acu Dial fit system, 20 air vents, and a detachable snap-fit visor. The colorful Flume is a universal youth size, fitting heads from (19.75 to 22.5-inches). |