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Giro Sonnet

Giro Sonnet
  • Color: White Moss Camo
  • Color: White Moss Camo
  • Color: Matte Black/White Shibori
  • Color: Matte Black/White Shibori
  • Color: Matte Titanium
  • Color: Matte Titanium
Please select options


Giro's Sonnet helmet is the perfect choice for all of your rides. It feature's Giro's In-Mold polycarbonate shell for low weight and strength. 25 large vents and Giro's Wind Tunnel technology pull air through the helmet to keep you comfortable, and Giro's Roc Loc 5 retention system secures the Sonnet and lets you achieve the perfect fit.

- Small = 51-55cm
- Medium = 55-59cm

Giro's Roc Loc 5.

A) Micro Dial - A ratcheting dial that’s simply twisted to tighten and loosen the fit.

B) Three-Position Vertical Fit - Lets you raise and lower the Roc Loc system to the perfect position.

C) Ergonomic Arms - Minimal shape fits comfortably and accommodates eyewear.

D) Dual Pods – Supportive, minimal panels that cradle your head for the utmost in comfort and safety.

E) Strap Management - The straps (not shown) are woven through the fit system to always remain in the right place.



Sonnet overview

In-Mold construction process

Wind Tunnel ventilation system

Part Numbers

Option UPC MPN Store SKU
White Moss Camo / Small 768686549007 7055056
White Moss Camo / Medium 768686549014 7055057
Matte Black/White Shibori / Small 768686548888 7055044
Matte Black/White Shibori / Medium 768686548895 7055045
Matte Titanium / Small 768686548949 7055050 210000062151
Matte Titanium / Medium 768686548956 7055051 210000062145