Millets Basket Close Menu Search Store Finder Twitter Facebook Instagram Blog Engage voice search Offer logo Click and collect logo Delivery logo
Choose size in stock:

Selected size:

Combining comfort with superb performance, the Giro Sonnet MIPS Helmet features MIPS technology which provides unbeatable protection from impacts. This helmet offers great ventilation all thanks to the 25 Wind Tunnel™ vents and the adjustable Roc Loc® 5 fit system which enhances comfort and allows you to easily custom tune the fit in seconds single handedly.

View product information

Product code: 139094


  • A versatile technical cycling helmet that guarantees to keep you protected
  • MIPS® Protection – Low friction layer separates shell and inner to improve head protection
  • In-mold polycarbonate EPS Liner - Provides enhanced protection by spreading impacts across a wider area
  • 25 Wind Tunnel™ vents – Enhances ventilation so your head feels cool
  • Roc Loc® 5 fit system – Enhances comfort and allows you to easily custom tune the fit in seconds
  • Womens series design - A diverse collection of helmet styles, fits and prices tailored to specifically to female riders

Delivery and collection options


Ratings & Reviews

Currently No Reviews

Please help us by writing a review of this product.

Write A Review