Giro Register MIPS II Adult Recreational Bike Helmet 21.25-24 in (54-61 cm)

HARDSHELL WITH IN-MOLD HARDBODY LOWER WRAP — The two-piece shell combines a tough outer hard shell with a polycarbonate lower shell permanently fused to the liner for durability without excess weight. Outer Material Polycarbonate (PC) Inner Material Expanded Polystyrene