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Hex Helmet
Sale 50% Off$39.99 - $62.00

Item # GIR0273

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  • Matte White/Lime, M ($39.99)
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  • Citron, S ($62.00)
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Item # GIR0273

The Giro Hex Helmet handles all the cranium-protecting duties and lets you focus on riding.

Hit the trail without worrying about your lid. The Giro Hex Helmet handles all the cranium-protecting duties and lets you focus on riding. The new RocLoc 5 adjustment system allows for simple horizontal and vertical adjustment without taking the helmet off, so you can get it dialed quickly and get pedaling. The adjustable visor helps keep the sun ot of your eyes, and 21 vents keep your brain from overheating on the climbs.

  • All-mountain riding
  • In-Mold construction
  • RocLoc 5 adjustment system
  • 22 vents
Tech SpecsSize
Tech Specs
Shell Material
Impact Foam
22 vents
Fit Adjustment
Roc Loc 5
P.O.V. adjustable
Recommended Use
cross-country, enduro, mud/sand/snow
Manufacturer Warranty
1 year


Adult Cycling Helmets
Super Fit™
Head Circumference

18.5 - 20in

(47 - 51cm)

20 - 21.75in

(51 - 55cm)

21.75 - 23.25in

(55 - 59cm)

23.25 - 24.75in

(59 - 63cm)

24 - 25.55in

(61 - 65cm)

Head Circumference

21.25 - 24in

(54 - 61cm)

19.75 - 22.5in

(50 - 57cm)

22.75 - 25.5in

(58 - 65cm)

How to Measure:
For best results, use a tape measure to measure around your head where your hat would fit comfortably.

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Love it

  • Familiarity: I've used it several times

Fits perfectly. The adjustments work and the helmet vents well. Helmet runs a little big but the adjustments help to make a snug fit.

Very nice helmet at a great price.

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: medium

This is a very nice helmet and a great value. I've owned many helmets over the years (Giros and other brands) and I keep coming back to Giro for the fit and finish. Giro helmet just fit me well. I put them on and almost forget they're there. Giro cut a few corners with this helmet, like the way the straps attach, but kept nice features like the dial fit adjustment and inner padding. Also, the venting is nice and open. It'd be hard to top the value of this helmet.

Good Helmet for a good price

  • Familiarity: I've used it several times

I picked one of these up and have used it quite a few times. It's really well vented, light, and fits well.

Light and breathable

  • Familiarity: I gave it as a gift but have feedback to share
  • Fit: True to size

Great fitting with great ventilation makes for a great all-around helmet. The dial in the back allows you to really get the best fit. Gift recipients feel that this is a great helmet for the money and will keep them safe on all their cycling adventures.

A great mountain bike helmet

  • Familiarity: I've used it several times

This is a great, lightweight mountain biking helmet. The vents are awesome for riding in super hot weather. I use the adjustment system in the back quite a bit, depending on the temperature, so I can wear the helmet on its own or layer something under it for a little extra warmth. I would say it fits pretty true to size; I wear a medium. I've used it mostly on rides around Park City for about 1-3 hours and have been really happy with it so far.
Last time I went riding I got in the car and almost drove home with it on because it's so comfortable I forgot I was wearing it! It isn't the fanciest helmet on the market but it does everything I need. Plus, it comes in super fun colors-- I got the purple one and it makes me smile every time I wear it.

Great Helmet

  • Familiarity: I gave it as a gift but have feedback to share

I gave this as a gift and their feedback was that it is a light helmet and fits extremely comfortable.

Giro Hex - Good so far!

  • Familiarity: I've used it several times

I've worn the helmet a couple times now and I'm happy so far! Really comfortable and fits well, don't even the notice the helmet as I'm riding.

Fits well, affordable, but will fade

  • Familiarity: I've put it through the wringer

I used this helmet for a month in the Arizona and Utah sun and the color faded (orange). Now the helmet is lighter than the visor. Not a huge deal, but that's why I knocked off one star.

The helmet fits well and is secure. I haven't had the bad luck to impact test it...yet.

Lightish Duty MTB Helmet

  • Familiarity: I've put it through the wringer

Value oriented (on sale) helmet that fits well if you like the Giro fit. It has slightly more coverage and beef than a road helmet, which this replaced (also Giro - no helmet will last forever). Venting is pretty good b/c of the huge channels (added bonus of Rufio hair after the ride). If you want more coverage there are better options as others have mentioned, but if you want a cross-country oriented helmet this is pretty good and doesn't cost a ton.

great helmet

  • Familiarity: I've used it several times

I really like this helmet. I was worried a small would be too small but it fits perfectly and I am able to adjust it if I have my hair in a braid. Its very lightweight and a great helmet all around.

Great fit/outdated design

  • Familiarity: I've used it several times

the helmet is great but really doesn't cut it for anything all mountain. If you're looking for an all mountain lid, look at the giro chronicle or montera.

Great fit, look, and price!

  • Familiarity: I've used it several times

wish the straps fit a little better where they come together under the ear, they don't lay flat. Other than that its a solid helmet.

Great fit, look, and price!

Bike Helmet

  • Familiarity: I've used it several times

This is a bike helmet. As bland as that sounds, it's pretty much all you need to know about the Hex helmet. It's light, comfortable, fits well, breathes well, and won't break the bank. Sure, it doesn't look as cool as the latest Troy Lee design, but I want my helmet to be an essential piece of gear, not a fashion statement. Put it on, forget about it, and go for a ride.

Great fit, super ventillation

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

I love my Giro Hex helmet.
The colors are super fun, and the helmet fits comfortably with great ventilation. I've always used a POC Trabec, but find that my head gets really hot in the summer, and this was a great alternative that looks the way I want it to look, keeps my head safe, and keeps me cool. The price is pretty hard to beat as well!

Fits great!

  • Familiarity: I've used it several times

I like how it stays on my head. It's lightweight, looks good aside from the color (i got the color that was on sale) and it was nice while riding off road in some pretty rough stuff. It's much better than my old helmet.

That's wearing the helmet.

Solid helmet

  • Familiarity: I've put it through the wringer

This helmet has great fit and ventilation. I live in Phoenix, where I expect something that's not going to let my head overheat and this does the trick. My boyfriend tried out my size S helmet a couple times and loved it, so he bought his own. He ended up buying his normal size M, to give you an idea of the overlap in sizes accommodated by the RocLoc system. The helmet's adjustability makes it feel very secure yet comfortable. Really can't beat this for the price!

Solid helmet