LS2 Strobe II Solid Helmet The Strobe II helmet is equipped with a Kinetic Polymer Alloy (Kpa) shell, integrating the latest in energy management flexibility. It meets the ECE 22.06 rotational energy management standards, thanks to LS2's cutting-edge Advanced Rotational Energy Management (Arem) technology. Certified for both open face and full-face use (Ece P/J rated), it provides unmatched versatility for riders, seamlessly transitioning from high-speed highway rides to casual stops. It includes a drop-down sun shield for easy adaptation to varying light conditions, and a removable, washable liner designed for ultimate comfort and convenience. Note: If you're in between sizes, customers recommend ordering the larger size. Features: Kinetic Polymer Alloy (Kpa) shell offers better energy managing flexibility 3 shell sizes: Xs-Sm, Md-Lg, and Xl-3Xl Intermediate Oval fit Modular helmet Quick release chin strap Built-in drop-down sun shield Clear Pinlock-ready face shield (Pinlock sold separately) Moisture-wicking helmet liner and cheek pads Meets ECE 22.06 Rotational Energy Management requirements using LS2 Arem technology Meets or exceeds ECE 22.06 and DOT Fmvss standards