Altitude Carbon Fibre Off Grid Hi-Vis

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  • Regular price $449.95
  • 1 available

The 509 Altitude Helmet is a sleek yet aggressive helmet, now crafted from carbon fiber. It features an innovative dual density, interlocking EPS foam liner that provides top crash protection in the event of an accident. The front chin area of the helmet is protected by a specially designed expanded polyurethane chin insert that provides front impact protection. The outer shell is made of specially designed carbon fiber for maximum shell strength with minimal weight.


  • Carbon fiber outer shell for max strength with minimal weight
  • Innovative dual density interlocking EPS foam liner
  • Front chin protection from specially designed expanded polyurethane chin insert
  • Innovative aerodynamic channels across the entire helmet direct air flow into 6 integrated vent scoops
  • 8 intake/exhaust vent ports
  • Cold weather breath box included
  • Lock-top center mount for the aerodynamic visor
  • 3 shell sizes
  • Premium removable liner
  • Neck brace ready
  • Eyeport fits 509 Sinister X5 and Aviator goggles
  • Integrated front mouth vent
  • Innovative universal camera mount that attaches to top visor in seconds
  • Fidlock magnetic technology easy open strap clasp
  • Meets or exceeds DOT and ECE safety certification standards
  • Helmets sized 2XL and larger use 509 XL goggles