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
|Option||Barcode||Manufacturer's Part Number||Store SKU|
|Matte Black/Dynasty Green Modernist / Small||768686957024||7036299||GIR34522141N|