Giro Aerohead Mips HelmetKey Features 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. INTEGRATED MIPS BRAIN PROTECTION SYSTEM All Giro helmets are designed to reduce as much energy as possible while meeting and exceeding stringent safety standards. The goal of Giro's Integrated Mips equipped helmets is to reduce rotational