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This product is no longer available, but don't go just yet.


  • Lightweight design with progressive lines and wide-angle cut provides great peripheral vision and a gapless fit with your goggles
  • In-mold technology bonds the helmet's tough outer microshell to the internal expanded polystyrene (EPS) liner, creating a light, cool and strong helmet
  • 15 vents move cool, fresh air through the helmet while radiating heat and stale air out
  • Take control of your comfort level with the included vent shield
  • Fit system features outrigger arms and an adjustment dial to fine-tune the fit; dial is easily operated, even with gloves on
  • Flexible pad at the base of the fit system conforms to head shape for a plush, personalized fit
  • Internal height adjustment compensates for different head shapes and goggle sizes
  • Security loop and deep Goggle Notch™ keep goggles attached to your helmet in the event of a major digger
  • Compatible with TuneUps audio systems, sold separately
  • Giro Nine 10 snow helmet complies with ASTM F 2040 and/or CE EN 1077 alpine ski and snowboard helmet safety standards; for additional information please see REI expert advice


See sizing/head circumference information below:

  • Small fits 20.5 to 21.8 in.
  • Medium fits 21.8 to 23.2 in.
  • Large fits 23.2 to 24.6 in.
  • XLarge fits 24.6 to 25.6 in.
  • View all Giro Men's Ski Helmets

    REI membership


    Best Use Snowsports
    Construction In-mold
    Shell Material Polycarbonate
    Gender Men's
    Average Weight 14.5 ounces