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Item # GIR007U

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Item # GIR007U

Enter the next Phase.

When the trail calls, the Giro Phase Helmet answers. It's loaded with everything you need to conquer the trail, and nothing you don't, all at a fair price.

The Phase is made via Giro's revolutionary In-Mold technology, which bonds the EPS foam liner to the exterior polycarbonate shell, saving weight and boosting breathability while also reinforcing the helmet's structure for greater strength overall. Permeating that shell you'll find no fewer than 27 vents to keep your melon cool during those scorcher mid-summer rides that make you wonder what the hell you're doing being out there. The Roc Loc 5 adjustment system teams up with Giro's Super Fit harness to make it easy to dial in the proper fit. Over your brow, you'll find the Snap-fit 2 removable visor to keep the sun and some debris out of your face.

  • In-Mold construction
  • Roc Loc 5 fit adjustment
  • 27 vents
  • Snap-Fit 2 removable visor

Tech Specs

Shell Material:
In-Mold polycarbonate
Impact Foam:
EPS
Ventilation:
27 vents
Fit Adjustment:
Roc Loc 5
Visor:
yes
Recommended Use:
cross-country, trail, all-mountain
Manufacturer Warranty:
1 year

Size chart

Giro

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)
Cipher
 XSSML
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

REVIEWS

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Great Design

  • Familiarity: I returned this product before using it

I purchased this helmet as a Father's Day gift and ultimately ended up returning only because he was not in need of a new helmet quite yet. This style has a great design. Overall really breathable, sturdy visor, great color, light weight, and easily adjustable. I will certainly keep this style in mind for the future.

Comfortable, Durable, Airy

  • Familiarity: I've used it several times

Finally got to break this helmet out for the first mountain biking trip of the season in Moab, UT. The first thing I like about this helmet is the fit, Giro has done a great job with the ergonomics for head shapes with the comfy foam and the adjustment in the back to get the tightness just right. Second is how light, yet hard and breathable this helmet is. We were biking in some solid heat and I was still able to feel comfortable while feeling a breeze through the slots. Luckily I haven't taken any serious falls to test the impact rating.

Did its job

  • Familiarity: I've put it through the wringer

Took a mountain bike bail in one of these. My hand may be broken and the foam on the side of the helmet is squished in, but my head is fine. Definitely buying another.

Dad approved!

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

I gave this to my dad as a birthday present and he absolutely loves it! He was wearing an old-school dated helmet and was overdue for an upgrade!



His head measures at 60 cm and the Large fits him perfect with room for adjustment if needed. He rocks this helmet around town commuting and occasionally on the mountain trails.



I purchased the blue so he can be seen from a distance and the color is very attractive, it is more matte than shiny.

Dad approved!