Size finder
Find your helmet size
Slide to your head circumference measurement and we'll point you at a starting size.
- Use a soft cloth tape measure, in centimetres.
- Wrap a soft tape around the widest part of your head — about 2.5 cm (1 inch) above your eyebrows, and around the widest point at the back.
- Keep the tape level and snug, not tight. Measure twice and take the larger reading.
Move the slider or type your measurement to see a starting size.
At cm, start with
covers cm in our chart.
info Your measurement sits between two sizes. Take the smaller one — padding and fabric give a little as gear breaks in.
We can't size that measurement
cm falls outside every size we have listed. Message us and we'll check what will actually fit rather than guess.
Get in touchshield_question Always check the helmet's own size chart before you buy. Sizes are not standardised between brands, or even between models from one brand. A helmet must sit snug with no movement when you shake your head — if it shifts, it's too big, whatever the label says. The ranges here are general guidance and haven't been matched to a specific manufacturer's chart.
Size chart
| Size | Head circumference |
|---|---|
| XS | 53–54 cm |
| S | 55–56 cm |
| M | 57–58 cm |
| L | 59–60 cm |
| XL | 61–62 cm |
| 2XL | 63–64 cm |
General guidance only — not yet matched to a specific manufacturer's chart.