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Giro Montara MIPS Helmet - Women's

Sale $104.96 - $149.95

Item # GIR00AI

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  • Matte Black Galaxy, S ($104.96)
  • Matte Mint, S ($149.95)
  • Matte Mint, M ($149.95)
  • Matte Purple, S ($149.95)
  • Matte Purple, M ($149.95)
  • Matte Black/Pink Crystals, S ($149.95)
  • Matte Berry/Bright Pink, S ($104.96)
  • Matte Black/Pink Crystals, M ($149.95)
  • Matte Glacier, S ($149.95)
  • Matte Black/Bright Pink, S ($104.96)
  • Matte Glacier, M ($149.95)
  • Matte White Tidepools, S ($104.96)
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Item # GIR00AI


Weekend adventures.

If your weekend agenda includes mashing up climbs, shredding descents, and taking in beautiful ridgeline views, make sure to bring along the Giro Montara MIPS Helmet. Designed for long days spent on the trails, the Montara is constructed with a durable In-Mold polycarbonate shell surrounding an impact-absorbing EPS foam liner and Multi-directional Impact Protection System (MIPS) so you can bring industry-leading tech along for the ride.

The big deal with MIPS technology is its ability to reduce impact force in the event of a crash. MIPS consists of a strategically anchored, thin liner on the inside of the helmet that looks exceptionally simple, but serves a big purpose. That little liner is designed to move independently of the helmet shell and diffuse certain types of impact force better than standard, non-MIPS helmets.

Beyond impacts, Giro ensures the Montara won't slow you down by designing it to integrate with your other riding gear, including a built-in camera mount with a breakaway design. Further, Giro's P.O.V. Plus visor adjustment system allows you to adjust the visor to accommodate full goggles with the helmet. Strap grippers are included on the back of the helmet to keep the goggles in place.

To keep the helmet from feeling cumbersome on hot days and long climbs, Giro created space for 16 vents with internal channeling for efficient air flow. The Montara is lined with hydrophilic, anti-microbial padding that absorbs sweat and, together with the Roc Loc fit system, provides a comfortable fit against your skin.

Tech Specs

Shell Material:
In-Mold polycarbonate
Impact Foam:
EPS foam
16 vents
Fit Adjustment:
Roc Loc Air
Full Face:
Recommended Use:
mountain bike
Manufacturer Warranty:
1 year



Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead


Size Chart


Adult Cycling Helmets
 SS/MMM/LLXLAdult UniversalWomen's Universal
Head Circumference 20 - 21.75in
(51 - 55cm)
20 - 22.5in
(51 - 57cm)
21.75 - 23.25in
(55 - 59cm)
21.75 - 24in
(55 - 61cm)
23.25 - 24.75in
(59 - 63cm)
24 - 25.55in
(61 - 65cm)
21.25 - 24in
(54 - 61cm)
19.75 - 22.5in
(50 - 57cm)
Head Circumference 20 - 20.75in
(51 - 53cm)
21.25 - 22in
(54 - 56cm)
22.5 - 23.25in
(57 - 59cm)
23.5 - 24.25in
(60 - 62cm)
How to Measure:
For best results, use a tape measure to measure around your head where your hat would fit comfortably.

Reviews & Community


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  • Familiarity: I've put it through the wringer

This helmet is awesome. It’s super comfortable, breathes well and definitely looks good! Bonus points for being able to slip my ponytail through the back!

Put this on your melon

  • Familiarity: I've put it through the wringer

The Montara helmet fits comfortably, breathes well, and has some serious style points. Even though some people say the jury is still out on mips, I say every dollar spent protecting your head is absolutely worth it. I took a serious fall straight onto my head in this helmet, and came away without a concussion. 5 stars.

Avg. ride time: 9h 39m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.


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

This helmet is awesome! It’s lightweight and breathable but still feels protective. I like that it has the MIPS protection for only slightly more money than the other helmets. I feel very safe riding in it. The dial adjuster on the back is great for readjusting on the fly. The visor is a nice length, blocks the sun but you can still see great. Love the color!

breathable, durable, and cool looking

  • Familiarity: I've put it through the wringer

I've worn this helmet in all seasons, put it through many long days of riding and it's my favorite helmet I've owned so far. It's breathable in the summer and it has saved me from head injuries a few times going over the handle bars. I also love the color options.. cant go wrong with the sleek black look in my opinion.

You had me at MIPS & the AWESOME colors!

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

Seriously impressed with how small this helmet sizes down to. I have a petite head (49-50cms around) and I can tighten this helmet tight enough to feel snug and comfortable. I've had such a difficult time finding an adult ladies helmet that fits my noggin this well! Most of the time I get that awkward gaping void in the back of the helmet between the synched down interior mechanism and the outer shell of the helmet...but, not with this one. The vents are awesome as well and it seriously feels so airy & light on! The MIPS makes me feel super safe and all the color choices are a breath of fresh air from the typical norm. All-in-all I'm pretty stoked on this helmet right now!!!

You had me at MIPS & the AWESOME colors!

Passes the pony tail test

  • Familiarity: I've used it several times

Fit's a pony tail through the roc loc thing and is comfy. Visor helps to keep sun out of your eyes too. bonus points for the bright color and being on sale.

Passes the pony tail test

Super Duper!

    Great helmet! I had no issues with fit and was easy to adjust to my size using the back adjustment (Fit Adjustment: Roc Loc Air) . 10/10 would suggest to a friend.

    I bought it for my mom

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

    Need I say more? I want my mom to be safe on the trails while looking cool. I trusted this helmet to do the job and it's lived up to all my expectations!

    Nice helmet

    • Familiarity: I've used it several times

    Purchased for my wife- she says it's comfortable and has good ventilation and also likes the fun pink color.

    Super Rad Super Safe

    • Familiarity: I've used it several times

    Everything about this helmet is stellar! Except the strap sizing, which is super weird and off and I still can't quite figure out what to do to get it right.

    Mostly OK

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: Medium

    Mostly this helmet works great. I got the size medium in white. Retaining system at the back still has room for my ponytail. Looks great. Feels great when I put it on. No problem with the chin straps as a previous reviewer had. My only complaint is that the inner shell MIPS layer snags on my hair and I almost always end up with a few strands pulling on my head for my whole ride (which means I end up with a headache and can't wait to get the helmet off on long rides). This wouldn't be an issue for people leaving their hair loose rather than braided or in a ponytail. Haven't seen other brands' MIPS layers, so I don't know if they vary between brands - too bad they don't show photos of the inside of the helmets.

    Poor strap sizing

    • Familiarity: I've put it through the wringer

    I wanted to really like this helmet. I've been biking for 14 years and have always fit Giro the best. I was on the cusp of a S and M, and went with the medium since the chin strap fit so much more comfortable. After several rides, I couldn't tighten down the medium anymore and had to wear a headband to make it fit well. Backcountry would not take the medium back since it had been more than 30 days. I ended up purchasing a small from another dealer and it fit my head great....but the chin strap is drastically shorter than what comes with the medium and I felt like I was being strangled. I was able to return the small to the other dealer and went with my old standby, the Hex.

    First Timer Over Here

      Bought this for the fiance who is new to MTB. She finds it comfortable, I find it safe.

      Like a Hug for Your Head

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

      This is the most comfortable helmet I have EVER owned. I love it!! I got the Matte Black Galaxy color and it doesn't overhead my head even in direct sunlight. I was slightly bummed that the "matte black" was a little shinier than I expected, but I love the Galaxy trim. The vents are awesome and it seriously feels like my head feels better with it on than off, but that could just be the stoke talking. The MIPS makes me feel super safe about my head and neck as well :)

      Protect your Lid

      • Familiarity: I've used it several times

      MIPS protection is a great thing. That added support cannot be beat. Very comfy helmet. I went with a M, I was right on the cusp of sizing and tried both S and M on...the M won . Colors are fun, fit is great, Giro helmets are made very well too, design, materials..etc... Big Fan!

      Hey Marla - I am on the cusp between small and med too and trying to decide. I would rather go small if I can. I measure 55 cms around - is that your measurement? Would small have been OK for you, do you think? Thanks in advance!!

      Angela, If you have not already gotten one, a M will be best for you too most likely, hit me up over LiveChat on Wed and Thurs eves after 4:30 MST and I'd be happy to help you more. You could grab both sizes and return way to dial in the fit a lot of the time. Thanks so much.


        I bought this helmet as a gift, and this is a great helmet! The ventilation is awesome, and the colors are great!

        Fits perfect

        • Familiarity: I've used it several times
        • Fit: True to size
        • Size Bought: small

        I find that Giro helmets fit my head really really well. It was so comfortable and easy to adjust. The ventilation is great. I have not landed on my head yet so I can't attest to the impact but it certainly feels strong.

        Love it!

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

        Fits great, my fiancé loves it. Looks great on her and she says it provides awesome ventilation while riding. MIPS protection is great because she has been known to fall, a lot.