Sale
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)
  • Altitude Helmet (2020)

Altitude Helmet (2020)

Select Color: Black Fire
Select Size: XS

Size Guide

$175.00 $249.95
Get IN5IDERS points
This is the number of 509 points you will receive for this order. Points are redeemable for exclusive rewards, experiences, content and free items. To redeem your points, check out the rewards section of your account.
SKU: F01000100-110-003

Free US Shipping

We offer Free Shipping on all orders over $99 within the US. During select promotions & holidays we will offer Free Shipping on all orders within the US.

Easy Returns

We have a very easy 30-day Return Policy! Please submit a Customer Support Ticket to get a Return Authorization so we can process your return or exchange.

12 Month Warranty

We stand behind our products – the 509 industry leading warranty covers every product we make in a variety of ways.

100% Secure Checkout

At 509 we use the best SSL certificate and the most trusted payment processors provided by Shopify Payments – so you will be able to buy safely and securely.

One of the industry’s bestselling helmets ever, the 509 Altitude series excels across four key principles: safety, performance, fit, and style. Revolutionary design means precision fit and sleek profiling that exceeds the competition, plus innovative venting and all-day comfort for aggressive riding. The 509 Altitude Helmet features the MIPS Brain Protection System for ultimate safety, Fidlock® magnetic strap buckle for easy one-handed operation, plus customizable elements like a removable cold weather breathbox.

Key Features

  • Removable vent stoppers for customized ventilation
  • Comes standard with universal camera mount
  • Comes standard with Fidlock® easy-open magnetic strap clasp
  • Comes standard with our new Pro Series Liner and Cheekpads
  • Comes standard with a cold weather breathbox
  • Innovative aerodynamic channels & 8 intake/exhaust vent ports
  • 11 Sizes across 4 outer shell molds ensure excellent fit, Youth SM - Adult 4X
  • Meets and exceeds DOT & ECE 2205 safety certification standards
  • One piece eye port trim
  • Perfect 509 goggle fit
  • Revolutionary neck brace ready shell profile
  • Custom fit eps, specially designed for North America
  • Special designed expanded polyurethane chin insert
  • Removable, washable premium liner
  • Dual density, interlocking eps
  • DOT/ECE helmet weight from 1380 grams