Giro Isode MIPS Road Cycling Helmet

- Integrated MIPS Technology
- Quick-dry padding
- Compact shape
- Full Hard body coverage
- Reflectivity
- Construction: In-mold polycarbonate shell with EPS liner
- Fit System: Roc Loc Sport
- Ventilation: 22 vents
- UA 21.25" - 24" / 54 - 61cm
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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