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White Customizable
White Customizable
Louis Garneau Diamond II Helmet
White Customizable
Louis Garneau Diamond II Helmet

Louis Garneau Diamond II Helmet

$126.00 (66%)
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A gem of technological innovation.

The elite Diamond Helmet II stands out in a crowd with a bold, race-inspired style, but where it really shines is all in the features you don't see. Louis Garneau's innovative patented construction process manages to combine amazing breathability with impressive strength and comfortable adjustability.

The tough in-mold shell is enhanced with a carbon skeleton and Super MSB impact ring. This patented construction allows for a massive 40 channel air ventilation system, so the Diamond stays cool without sacrificing structural integrity. Exo-Insert technology furthers the protection with strategically placed composite reinforcement to spread and absorb impact shock.

X-static XT2 padding offers ergonomic cushioning with moisture evacuation channels help wick away the perspiration. The new SpiderLock PRO II retention system increases fit versatility with simple one-handed adjustment and a polymer neck support for further comfort. An included removable SpiderLock LED light keeps you visible on early morning or nighttime rides.

The Diamond II Helmet is available in Red, White, and Black. The White version includes stickers in various colors for customization with your team kit.


  • Small: 52-56cm (20.5-22")
  • Medium: 56-59cm (22-23.25")
  • Large: 59-62cm (23.25-24.75)

Discount Codes and Instant PriceMatch are not applicable to Closeouts.

*Orders received before 2:00PM Pacific time are shipped the same day (M-F). Orders over $75 are shipped free (USA only, excluding AK and HI). Some exceptions apply. See Shipping for details.