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Giro Sonnet MIPS Helmet - Women's

Sale $76.96 $109.95 30% off

Item # GIR007X Past Season Colors

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Item # GIR007X

Refined.

Thanks to a partnership with the impact experts at MIPS, Giro went on an epic quest of refining head protection to perfection, which has taken another step in the right direction. The lyrically named Giro Sonnet MIPS Helmet is the product of Giro's collaboration with MIPS, a project that spanned two years and thousands of tests and takes some poetic license with a model based on 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 Sonnet 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.

While the tectonic outer shell is the result of an international collaboration, the rest of the helmet is pure Giro. The In-mold construction process fuses a middle layer of polycarbonate to the impact-absorber EPS foam body to bump up durability without a corresponding rise in weight. A healthy dose of vents and internal air channeling keep your head cool, so you're not sacrificing comfort for safety, and Giro's Roc Loc 5 system uses a ratcheting dial and adjustable fore/aft tilt for unrivaled customizability of fit.

  • MIPS technology
  • Roc Loc 5 retention system
  • 25 vents

Tech Specs

Shell Material:
polycarbonate
Impact Foam:
EPS foam
Ventilation:
25 vents
Fit Adjustment:
Roc Loc 5
Visor:
no
Certifications:
CPSC
Recommended Use:
cycling
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.

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