K5 S Helmet - Pearl White - XL K5 S Mono Helmet Fiberglass and carbon fiber composite outer shell Two outer shells and four Expanded Polystyrene (EPS) foam sizes for the most accurate fit Dimensions of outer shell and EPS optimized using FEM (Finite Element Method) analysis IVS (Integrated Ventilation System) with wide ducts hollowed into the EPS shell optimized in wind tunnel testing Central front air intake recessed in outer shell profile with a high-capacity direct duct Rear spoiler integrated in the outer shell’s profile AGV SHARE communication system ready Sanitized Dry-Comfort® fabric Removable lining, breath deflector, neck roll, and chin curtain XQRS (Extra Quick Release System) for rapid shield removal Visor with micro-opening “demist” system Scratch resistant, anti-fog, 100% UV protective clear face shield ISV (Integrated Sun Visor) scratch-resistant and anti-fog; tool-free replacement Chin strap with a metal double D-ring retention system