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Giro Feather MIPS Helmet - Women's

Sale $66.46 $94.95 30% off

Item # GIR007Z Past Season Colors

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Item # GIR007Z

Feathery but not fragile.

Contrary to what its name might suggest, the Giro Feather MIPS Helmet is no lightweight in the protection department. It not only provides lower protection on the side and back than most trail helmets, but it also incorporates the impact technology developed in collaboration with MIPS over two years and thousands of tests.

The collaboration's goal was to create a helmet based on your biology. The collaboration's goal was to mimic your skull's natural noodle-defense mechanism, cerebrospinal fluid, which allows for lateral movement of your head's different protective layers to absorb and diffuse impacts that would otherwise go straight to your brain.

The Feather translates this model to exosomatic applications by allowing the outer shell to slide across the helmet's body when tangential force is applied. Instead of just absorbing energy, the helmet is able to redirect it, making the ultimate impact on your head that much less dangerous.

Helmets aren't only about protection, though, and the Feather benefits from all the different pieces expertise that Giro has amassed over the years. The 12 vents and internal channeling keep you cool by drawing heat up, where it's expelled into the alpine air. The In Form fit system makes for an equally comfortable fit by using a ratcheting dial to effect up to 6 centimeters of adjustment, which, when combined with Giro's 20-plus years of helmet fitting nous, gives unrivaled customizability.

  • Polycarbonate shell with EPS foam
  • MIPS technology
  • Additional protection on sides and back of head
  • In Form adjustment system
  • 12 vents

Tech Specs

Shell Material:
Impact Foam:
EPS foam
12 vents
Fit Adjustment:
In Form system
Recommended Use:
mountain biking
Manufacturer Warranty:
1 year

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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Comfortable and Light

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

I purchased this item because it was recommended to me by a friend and I think I will be very satisfied with the helmet this summer. Light weight, easy to adjust, plenty of ventilation, and a nice brim to keep the sun off a bit. I only have initial impressions as I have been slow to pull the bikes out this season, but from what I can tell at this point, the helmet will fit the bill.

*** Size appears to be true. I have a smaller head and purchased the small which fits perfectly with a few simple adjustments.

Comfy and Safe

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

I gave this helmet to my girlfriend and she is loving it. Her old helmet was too big so just getting her the correct size was an upgrade, but she also likes the comfort and ventilation of this particular helmet. The price is also a great middle-ground. You obviously don't want to skimp on protecting your brain, but there's also some pretty wild expensive options out there that don't seem necessary for the recreational rider. My girlfriend rides maybe once a week max in the summer, so this is a great option for her.

Style and Comfort

    I bought the wifey a new bike and naturally she needed a new helmet to along with it. (On a good note she doesn't like to match helmet to bike.) I got her the Matte White Brush Strokes Giro Feather MIPS Helmet; and she LOVES it!

    She really digs the color and says it fits great. She has a relatively small head, but the small fits her nicely, and the "in Form adjustment system" is perfect for her to adjust helmet size based on her hair-due.

    I feel good that she has the MIPS to keep her brain safe...they say a man is nothing without his wife.

    Fits really well

    • Familiarity: I've put it through the wringer

    Fits really well, I can definitely tell the difference though in ventilation between this and my older helmet that didn't wrap behind the ears. I tend to overheat if we're riding in the sun. Fits really well though and feels really solid.

    Fits really well

    Great fit!

    • Familiarity: I've used it several times

    This helmet fits great, comfy, and not too hot. I haven't put the mips to the test yet and hopefully I don't have to anytime soon but the technology is so smart and if you can have it then why wouldn't you?

    Joe, is the Giro Feather a unisex helmet? and is the helmet true to size?