The LS2 Stream II Helmet culminates as a sport-style helmet, defined by an aerodynamically engineered shell constructed from LS2's Kinetic Polymer Alloy (KPA). This innovative material incorporates nanotechnology to interlace aramid fibers with a superior polymer, achieving outstanding energy absorption and controlled flexibility, which helps diminish the rebound effect found in lesser quality helmets. Marking compliance with the ECE 22.06 standards, the Stream II incorporates Advanced Rotational Energy Management Technology (AREM) for superior rotational energy deflection. Featuring a rear spoiler that enhances airflow, this helmet also comes with 3D laser-cut foam cheek pads, coupled with a removable and washable liner, all part of the flex-crown comfort system that ensures lasting comfort and ease of maintenance. The helmet's design with three shell sizes and five EPS liners offers an exceptional fit. With these features, the Stream II positions itself as a leading contender in the full-face motorcycle helmet category.