Intergrated MIPS Brain Protection System In-Mold Construction fuses a tough polycarbonate outer shell with the helmets impact-absorbing foam liner The Roc Loc Sport fit system offers easy-one handed operation with a 7cm adjustment range Reflective Details enhance visibility at nighttime or in low-light conditions when illumiated by a light source, such as headlights, by returning the light back to the source and reaching the driver's eye. Our Universal Fit helmets are sculpted to look good and fit great for almost anyone on the first try. Giro Fixture Mips ll Youth Helmet