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Detail Images

  • Giro Aeon Helmet Side
  • Giro Aeon Helmet Side
  • Giro Aeon Helmet Highlight Yellow
  • Giro Aeon Helmet Matte White/Silver
  • Giro Aeon Helmet Matte Black/Bright Red
  • Giro Aeon Helmet Matte Black
  • Giro Aeon Helmet Matte Black/White
  • Giro Aeon Helmet Side
  • Giro Aeon Helmet Side

Available colors

  • Giro Aeon Helmet Highlight Yellow
  • Giro Aeon Helmet Matte White/Silver
  • Giro Aeon Helmet Matte Black/Bright Red
  • Giro Aeon Helmet Matte Black
  • Giro Aeon Helmet Matte Black/White

Giro Aeon Helmet

$199.95

Free 2-Day shipping on orders over $50*

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    in stock
    4.5 5 27

    27 Reviews

    Details

    Fit should never be in flux.

    Giro’s ultralight helmet, the aptly named Prolight, weighs in at 22 grams less than the Aeon you see here. What do those 22 grams get you? A more adjustable helmet. The Aeon includes Giro’s Roc Loc 5 adjustment around the circumference of your head, as well as strap buckles beneath your ears, neither of which you’ll find on the Prolight. If you never wear a cap or winter hat, and the Prolight fits just fine, then you’re 22 grams ahead — for the rest of us, there’s the Aeon.

    • Roc Loc 5 adjustment system
    • SL Roll Cage maintains helmet’s integrity in the event of a crash
    • 24 Wind Tunnel vents move air in, through, and out of the helmet
    • Item #GIR0402

    Tech Specs

    Impact Foam
    Thermoformed SL Roll Cage
    Ventilation
    24 vents
    Fit Adjustment
    adjustable chin strap, Roc Loc 5
    Certifications
    CPSC
    Claimed Weight
    222 g
    Recommended Use
    road cycling
    Manufacturer Warranty
    1 year

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Great Helmet

    • Familiarity:I've put it through the wringer
    • Fit:True to size

    This is truly a lightweight helmet. Its very comfortable and I quickly forget that it is even on. The venting is excellent (summers are hot and humid here). The straps are narrow and not as rough as my previous helmets (including the old Ionos model). The Roc Loc system adjusts easily and is effective at holding the helmet in place. The only bad thing I can say about the helmet is that it is overpriced. But so is most cycling gear.

    On the road again...

    • Familiarity:I've put it through the wringer

    I've put this helmet through the wringer with Leadville and training for the event. My wife liked the bright color so she could see me from the feedzone. It fits as expected of a GIRO product, pressure points match up to my other Giro's through the years, so no issues with fit or sizing.

    Survived a hard crash at 25mph

    • Familiarity:I've put it through the wringer

    Crashed at 25mph in HH100 this weekend. Landed on my head and shoulder. My immediate thought was no way I 'm not concussed. But after walking around and going thru some mental drills (3 prior concussions so I know the signs) I continued riding. The Aeon structure cracked and split on one of the ribs, but protected me from head damage. It's very light and airy. Not a perfect fit, but workable. I'll retire it now.

    Light + cool + love

    • Familiarity:I've put it through the wringer

    When I first started cycling somewhat regularly, I balked at buying much more than the most basic helmet, as I didn't understand the value in having a very lightweight, well ventilated helmet. After a few thousand miles in the saddle, I got the joke and picked up the Aeon. The Giro helmets all fit my head shape quite well, and when I wear the Aeon, I feel like it is almost not even there. A top quality helmet is a worthy upgrade for anyone who puts in decent mileage on his or her machine.



    Photo: telling my friend Brett to put his bike down (raising it over one's head is a serious roadie rule violation!) after a big ride through CT, NY, and MA. Sharon, CT

    Light + cool + love

    light and stylish

    • Familiarity:I've put it through the wringer

    The Aeon is my favorite Giro helmet. Its very light and breathes better than any of my other lids. I love the way it looks and I've never had an issue with the RocLoc. Tons of color options is nice too!

    super lightweight and breathable

    • Familiarity:I've put it through the wringer

    Not really a fan of the latest helmet designs and styles so I hope that Giro will continue to produce this helmet for a long time. I have ridden this on 100F+ days in georgia and down into the 20's wearing this... No complaints. It is so lightweight that I have had to check with my hands a couple of times on cold days to make sure I had my helmet on...

    What's with all the stars?

    • Familiarity:I returned this product before using it

    I see a LOT of road cyclists with this helmet so I thought I'd give it a shot. Don't see what all the hype is about. Looks okay but not great (I tried the black). Maybe one of the colored ones would look nice if it matched your kit. But in terms of breathability the mavic plasma or the catlike mixino both breathe better (hence only 3 stars). In terms of comfort I had no complaints.

    The best for a reason

    • Familiarity:I've put it through the wringer

    I ordered a POC Octal to be quirky/cool/different and match my two Cervelos. I couldn't get over the mushroom vibe no matter how light it was so I returned it for the Giro Aeon. Also toiled over the Catlike, but couldn't be happier I went Giro.

    I got it in fluorescent orange to stick with the high-viz theme and it definitely passes the test. Bright, light, most comfortable helmet I've ever owned.

    It gets breeze to my scalp through my mop of hair and has no compatibility issues with my Oakley Radarlocks. It's a close fit but as long as everything is properly adjusted, you'll forget you're wearing shades or a helmet. Can't say enough good things about the Aeon!

    Adjustment knob breaks off

    • Familiarity:I've put it through the wringer

    Overall a good helmet. However, I've owned three of these, and the adjustment knob has broken off each one within 3-4 months of use. I never adjust the fit while riding, and I am understandably cautious when I do turn the knob. Mechanics at my local bike shop say that manufacturers discount longevity in order to make low weight claims. Come on, people. A stronger knob might add 3-6 grams. It's worth the weight.

    Giro fan forever...

    • Familiarity:I've put it through the wringer

    The Aeon saved my life, literally. I was t-boned during a ride... Before that, it was an extremely comfortable, super light weight, and excellent looking helmet! I would not hesitate to get another and in fact, I just did! Thanks Dan and Competitive Cyclist! Going for the orange one for visibility ;)

    Does not hold sunglasses well

    • Familiarity:I've used it several times

    I just got this helmet a couple weeks ago. Very comfortable and light. I love the adjustment mechanism. The large size does not hold my oakleys at all. It might seem like a silly thing but i'm so used to putting my glasses in my helmet for the long climbs simply with one hand and easily reaching for them when I need them. I would think that would be a design consideration with a helmet of this level. I might return it but I do feel a little guilt about this as I've been using it for a couple weeks now. Really want to really like it.

    Feels Good, Looks Good Too

    • Familiarity:I've put it through the wringer

    Love the design and look of this helmet, and all the great color schemes that it comes in. This along with its super lightweight and a perfect fit make this my favorite helmet from Giro, and my favorite helmet I've ever owned.

    Feels Good, Looks Good Too

    Great helmet but costly

    • Familiarity:I've put it through the wringer

    I've been riding with my Aeon for about 18 to 24 months. Without a doubt the lightest, most comfortable helmet I've ever used. Also the the best able to keep my melon cool. This is important as I live in South Florida and regularly ride in 90 degree temps. This helmet's only downfall is it's high cost. Easily 50 to 70 dollars more than several other high end helmets. Helmets wear out (the Roc loc on mine took a dump recently) and replacing it is a substantial cost. That said, if money isn't a problem you will have a difficult time finding a more comfortable helmet than the Giro Aeon.

    One of the very Best

      I purchased my first Giro "Atmos" helmet over 12 years ago. It was one of the first modern, really good looking, highly-vented, in-mold composite/Kevlar reinforced bike helmets. Fast forward to today... Giro (based in Santa Cruz, CA) designs some of the best high-end helmets in the sport (atmos, aeon, and air attack).

      The Giro "Aeon" helmet is a fantastic Summer helmet: extremely well-ventilated and -amazingly- light. The ultimate light-weight warm-weather helmet?

      Note: Make sure any helmet fits your head shape (and size) correctly. This is very important and true with any company's bike helmet.

      Light & Right

      • Familiarity:I've used it once or twice and have initial impressions

      Santa just brought me a new Aeon, and I've taken advantage of a couple of warm-ish days to ride with it. The first ride, I had to tap my head a couple of times to make sure I had a helmet on - it is that light and comfortable. I've been riding with Giro buckets for 10+ years and this is definitely their best effort. It adjusts very easily, and the straps are light and comfortable. Even with my 7 7/8ths head, I could fit a wool training beanie underneath. Fortunately, I've never had to test my Giro crashworthiness out it any serious way, but it's nice to know it's there. Take a look at one if you are thinking of a new helmet.

      Great Helmet

      • Familiarity:I've put it through the wringer

      This is my 2nd purchase of the Aeon. My first safes my noggin (only slight concussion )and had a slight dent in it. This helmet is awesome. Very light weight and comfortable. When I saw it on sale on Backcounrty for an incredible price I grab it up ASAP. I previously purchased a pair of Sidi's and saved $100. Amazing ; Thanks Backcounrty for having the best on sale/ close outs.