**Shark Helmet Sizing** SIZE | HEAD (CM) ---|--- XS | 53-54 SM | 55-56 MD | 57-58 LG | 59-60 XL | 61-62 2XL(KS) | 63-64 The fiberglass version of the Spartan offers SHARK’s leading innovations in terms of design, safety and aerodynamics. **Structure and Safety:** * Shell made of multiaxial fiberglass * 2 shell sizes for optimal morphological adjustment * Double-D ring strap * Multi-density EPS **Visor:** * VZ160 model, anti-scratch visor * Pinlock Max Vision® included in the box * UV380-labeled visor treated to resist scratches * Quick visor release system * “Autoseal” system: Enmeshes the visor into the helmet, thereby improving soundproofing and making the helmet resistant to both water and cold air **Inside:** * AEGIS®-labeled MICROTECH lining fabric featuring antibacterial properties * Removable interior suitable for machine washing (30°C max) * "EasyFit" system: Optimal comfort for riders wearing glasses * "Dual use" anti-fog breath guard removable * Anti-fog mask * Slot reserved for the Sharktooth® intercom **Aerodynamics and ventilation:** * Double spoiler with integrated air extractors: optimization of the aerodynamic drag and internal cooling * Aerodynamically-shaped “SHARK Skin” side fastenings on the peak favoring passive noise abatement * Aerodynamics optimized by means of CFD (Computational Fluid Dynamics) design studies **Finish:** * Ventilation with a “dark chrome” finish *[XS]: Extra Small *[SM]: Small *[MD]: Medium *[LG]: Large *[XL]: Extra Large