Featuresr integrally molded helmet with pc shell and eps foam helps absorb the impact and protect your headr 18 flow vents to keep you coolr removable visor provides increased shade while ridingr reflective element on the back of the helmet makes it shiny and visibler adjustable rotary regulator ensures a comfortable fit fits head circumference 58 62cmr comfortable and washable mesh lining with insect netsr ultralight streamlined design reduces wind friction and increases the speed