Giro Syntax Mips Road Cycling Helmet

The Giro Syntax MIPS road cycling helmet combines a touch of European flair with slightly deeper coverage and high-performance features - all tucked into a very slim design.
The outer shell of this feature rich road bike helmet is moulded from a tough polycarbonate that’s fused permanently to the EPS foam liner using our In-Mold construction process to enhance durability and ventilation without excess bulk.
The fit of the Syntax is luxurious and secure, thanks to our highly adjustable Roc Loc 5 Air MIPS system that allows you to customize fit/feel for great stability and long-range comfort. Another benefit is integrated MIPS which can provide an added measure of protection from rotational forces in the event of an angled impact.
Long-range comfort meets relentless performance and style with the Giro Syntax Mips®. It has slightly deeper coverage and a slim profile, making it a leading choice for road and gravel adventures.
Key Features:
- 25 Wind Tunnel vents with internal channeling
- In-Mold polycarbonate shell with EPS liner
- Four-piece polycarbonate interlocking Hardbody shell
- Roc Loc 5 Air MIPS
- Integrated MIPS technology
- CoolFit anti-microbial padding
- Featherweight webbing with Slimline buckle
Occasionally, without notice, manufacturers change product design and/or specifications.
Giro Helmet Size Guide
How to measure your head size
To find the circumference of your head, place a tape measure in the centre of your forehead, wrap it around above your ears and around the back of your head. If there's a slight difference between two different sizes, always go for the tighter size.

Giro cycling helmets are adjustable so will fit a range of head sizes. Once you know the circumference of your head, select an appropriate helmet size. For example, if your measurement is 57cm then a size M (55-59cm) or a One Size (54-61cm) will fit you.
Giro Men’s or Unisex Helmet Size Chart
|
Helmet Size |
Head Circumference cm |
|
One Size |
54 – 61 |
|
Small |
51 – 56 |
|
Medium |
55 – 59 |
|
Large |
59 - 63 |
|
Extra Large (selected models) |
61 - 65 |
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