509 Altitude Aura Helmet
  • 509 Altitude Aura Helmet - Fuchsia
  • 509 Altitude Aura Helmet - Fuchsia

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509 Altitude Aura Helmet

The 509 Altitude Helmet is a sleek yet aggressive helmet.


  • Thermoplastic poly alloy outer shell
  • Intermediate oval
  • Innovative dual density interlocking EPS foam liner
  • Front chin protection from specially designed expanded polyurethane chin insert
  • 8 intake/exhaust vent ports
  • Cold weather breath box included
  • 4 shell sizes
  • Removable and washable premium liner
  • Neck brace ready
  • Class-leading eyeport opening dimensions for optimal peripheral vision
  • Perfect 509 goggle fit
  • One-piece eyeport trim
  • Integrated front mouth vent
  • Innovative universal camera mount that attaches to top visor in seconds
  • Meets or exceeds DOT and ECE safety certification standards
  • Helmets sized 2XL and larger use 509 XL goggles

509 Helmet Sizing

Size Head (cm)
XS 53-54
SM 55-56
MD 57-58
LG 59-60
XL 61-62
2XL 63-64
3XL 64-65
4XL 66-67

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How To Measure

H Head Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
Product Style RevZilla Item # Manufacturer Product # Availability
Fuchsia / 2XL 1142327 509HELAAU2XL Available: Requires 4-6 business days lead time prior to shipment
Fuchsia / LG 1142325 509HELAAULG Out of Stock
Fuchsia / MD 1142324 509HELAAUMD Available: Requires 4-6 business days lead time prior to shipment
Fuchsia / SM 1142323 509HELAAUSM Out of Stock
Fuchsia / XL 1142326 509HELAAUXL Available: Requires 4-6 business days lead time prior to shipment
Fuchsia / XS 1142322 509HELAAUXS Available: Requires 4-6 business days lead time prior to shipment


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We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

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