LS2 Helmets Stream II Solid Helmet W/ Sunshield The LS2 Stream II Solid Helmet pairs advanced safety with a sleek, sport-inspired design, incorporating LS2's Kinetic Polymer Alloy (Kpa). This innovative material integrates microscopic aramid fibers into a high-end polymer, offering unparalleled energy absorption and flexibility, crucial for minimizing impacts without the drawbacks found in lesser helmet materials. It adheres to ECE 22.06 standards through its Advanced Rotational Energy Management Technology, ensuring top-notch rotational energy management. Ventilation is optimized with a dynamic flow-through system, enhanced by a rear spoiler. Comfort is paramount, thanks to 3D laser-cut foam cheek pads and a removable, washable liner equipped with a flex-crown comfort system. The helmet offers exceptional fitting options with three shell sizes and five EPS liner sizes, making it stand out for its comfort and fit. The Stream II sets a new benchmark in full-face motorcycle helmet performance and finish. Features: Intermediate oval fit 3 shells 5 energy absorbing EPS liners High tech, aerodynamic, sport styled Kinetic Polymer Alloy shell Arem rotational energy management meets ECE 22.06 standards Dynamic, flow-through ventilation Quick release chin strap Class A polycarbonate Pinlock ready face shield (Pinlock sold separately) Moisture wicking liner and cheek pads Meets or exceeds ECE 22.06 and DOT Fmvss standards