Louis Garneau Diamond Helmet - 2011


Regular Price: $189.95

Sale Price: $151.99

You Save: 20%

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Quick Overview

The Diamond Helmet represents our greatest achievement in helmets.

Louis Garneau Diamond Helmet - 2011

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  • Also Available in Grey Blue
  • Also Available in Black White
  • Helmet Size Chart


At 285 grams and over 40 vents, we have designed a helmet to out perform the competition. Through patented technology, we have unleashed an absurd amount of ventilation while still meeting safety standards. Worn by Chrissie Wellington in her record-setting 2009 Ironman World Championship title.


  • Weight: 10.1 oz/285 g
  • Vents: 40
  • In-Mold Construction: Industrial process binding the microplastic and polystyrene together to add superior mechanical properties to these materials.
  • Spiderlock Elite: Adjustable and detachable rack-and-pinion mechanism using only one hand to stabilize the helmet on the head. It is provided with ergonomic padding.
  • Steplock Divider: Cam locking device to quickly adjust strap position.
  • Sealed Airdry Padding: Washable sealed adjustment padding for enhanced durability, ergonomic design for optimum comfort.
  • Evacuation channels: Moisture channels provide better airflow and moisture wicking.
  • Super MSB Technology: Ring-shaped protection at the base of the helmet reinforces the perimeter to spread the shock of impact.
  • Exo-Insert Technology: Lightweight inner plastic reinforcement spreads the shock of impact and helps maintain the helmet's structure.
  • Composite Reinforcement: Inner composite-made frame which spread the shock of impacts. It provides support and protection while being lightweight.


  • S: 6 1/2-7; 20 1/2" - 22"; 52-56 cm
  • M: 7-7 3/8; 22" - 23 1/4"; 56-59 cm
  • L: 7 3/8-7 3/4; 23 1/4" - 24 1/2"; 59-62 cm