Our new G-FORCE Racing Gear Pro Crew helmet was designed with all the same great technology as our new Pro Force helmet line. It is constructed with our lightweight composite Z38 shell and G78 impact liner. The G-Flow ventilation system consists of four top vents that keep your head cool. The crew helmet has multi-adjustable straps for radio headsets. The adjustable visor system has a tinted band to help keep the sun out your eyes to make pit stops even faster. compromise your well being by using a hockey or bicycle helmet.