Arai XD4 Diamante Black/Blue Dual Sport Helmet - X-Large High-flow peak channels air directly into the front vents Twin-cam shield pivot system allows the face shield to operate fully under a peak that can be lowered for better aerodynamic. Can be configured with shield and peak, peak only (for use with goggles) or shield only Fully removable/replaceable and washable liner with optional sizes available for custom fit 4 top vents. Dual intake/Dual exhaust ventilation-dual I/C top intake vents and double delta bridged exhaust vents designed to draw significant volumes of air from helmet interior CLC (Complex Laminate Construction) shell fiberglass composite is stronger and lighter- allows use of softer, less dense liner materials inside for increased rider comfort