Bells Star helmet would cost you around 700 US$
Here are some specs of Bells Star Helmet
Technologies:
• Velocity Flow™ ventilation system with FlowAdjust™ for maximum ventilation and temperature control
• Super stable aerodynamic signature resists buffeting and lift
• Super lightweight 100% carbon fiber shell
• Contour Cut Cheekpads for superior fit and comfort
• 3Mode Shield™ for instant on-bike shield adjustments, and ClickRelease™ for the fastest, easiest, tool-free shield swaps ever
• NutraFog II™ superior anti-fog, anti-scratch and UV protected shield
• Integrated speaker pockets for audio speakers
• Removable and washable interior for maximum comfort
• Exclusive Magnefusion™ magnetic strap keeper (Patent Pending)
• Padded chin strap with D-ring closure
• Five-year warranty
• The Star Carbon comes in a padded, lined Bel helmet bag