Giro register helmeta sporty helmet that ensures you look the part on road or trail, the register helmet from giro has plenty beneath the surface to back it up'. '.strtoupper('p')erhaps most impressive is the combination of energy absorbing eps liner and hardcore polycarbonate outer shell keep your head safe in the unfortunate event of a collision, with the perfect fit provided by the roc loc sport system'. '.strtoupper('m')eanwhile, a total of 22 vents and quick dry padding keeps you sweat free when the intensity all around you starts to rise, the removable quick link visor helps to keep sun and rain out of your eyes and just enough subtle reflectivity ensures you stay safe and seen to other road users in lower light.roc loc sport fit systemgiving you the perfect fit here is the industry leading roc loc sport fit system'. '.strtoupper('c')ombining comfort and stability for your head without adding any extra weight to your ride, it keeps close to your skull for unbeatable security, with an easily adjustable fit that can be dialled quickly and easily using only one hand.featuresin mold polycarbonate shell with eps linerremovable quick link visorfull hardbody shellroc loc sport fit system22 ventsquick dry paddingreflectivitycompact shapeuni size 54cm 61cmbuy giro helmets from chain reaction cycles'. '.strtoupper('t')he world's largest online bike store.