honda sm5 helmet ece black red glossy Size:M Asymmetrical and lightweight ergonomic panel Made from 100 acrylic Asymmetrical and lightweight ergonomic panel construction offers extended protection surfaces to reduce rotation Benefit from efficient energy dissipation and deflection The inner liner features a 7 piece expanded polystyrene (EPS) construction including five different densities of EPS designed to ensure the correct density in the correct area for enhanced impact absorption The lightweight Honda SM5 Helmet features a thermo injected shell incorporating a special polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight