LS2 Stream II America Helmet W/ Sunshield The LS2 Stream II Helmet stands out with its aerodynamic, sporty design crafted from LS2's own Kinetic Polymer Alloy (Kpa). This advanced material incorporates nanotechnology, blending microscopic aramid fibers with high-end polymers for exceptional energy absorption and flexibility. Unique to Ls2, its Advanced Rotational Energy Management Technology (Arem) meets the rigorous ECE 22.06 specifications for rotational energy management, ensuring user safety. The helmet features a rear spoiler for enhanced ventilation and 3D laser cut foam cheek pads for added comfort. The removable and washable lining, along with the flex-crown comfort system, guarantees a comfortable fit over time. With three shell sizes and five EPS liners, it provides an unparalleled fit. The LS2 Stream II Helmet is a top choice for full-face motorcycle helmets, thanks to its superior finish and performance. 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