Giro Synthe Helmet

We’ve read the reviews across the web for the Giro Synthe Helmet and summarize the results below:

Universal Ranking

PeakScore: 93 (out of 100)
User Rating: 4.7 stars 
Expert Rating: 4.5 stars

Number of Ratings Reviewed: 72

Pros & Cons

Reasons to buy:

User Reviews

  • High durability.
  • Easy adjustment and uncomplicated.
  • Less wind noise than other models.
  • Less heat build-up during hotter days.
  • The mesh frame forms to your head shape.
  • Stylish look.
  • No pinching or pressure points in the helmet.
  • Adjustment is easy with a twist of the dial at the back of the helmet.
  • The fit is reliable and stable.

Expert Reviews

  • The Roc Loc Air system fits most head shapes.
  • The expanded polystyrene (EPS) body of the helmet is raised a little bit off of your head, promoting air flow and breathability.
  • The drag is reduced by covering the side vents.
  • The helmet is one of the lightest on the market.
  • 26 wind tunnel vents.
  • Internal channels to aid in the functionality of the vents.
  • Reduced frontal area has given it a more streamlined look.

Reasons NOT to buy:

User Reviews

  • The strap does not reach as far to the back of the helmet as other models do, limiting the adjustability.
  • Runs a bit small compared to other Giro models.
  • The strap is comprised of nylon and polymer, which may irritate some.

Expert Reviews

  • Expensive.


The Giro Synthe Helmet is a lightweight, breathable, and aerodynamic option that is suitable for most cyclists. The easy adjustability and performance-driven design make this a good choice for serious athletes performing in training or road racing.


Note: User and expert rankings were reviewed across the web, including here: 1, 2, 3, 4.