Sizechart Helmets
Before you order a helmet, it is important to choose the right size. Wearing a helmet which is too large or too small, can adversely affect your safety. Please note that a new helmet might feel tight at the beginning.
You can use a tape measure to measure the circumference of your head. Place the tape measure about 2 cm above your eyebrows and put it around your head. The table below gives an indication between circumference and size.
| Circumference (cm) | Size adults | ![]() |
| 53 / 54 | XS | |
| 55 / 56 | S | |
| 57 / 58 | M | |
| 59 / 60 | L | |
| 61 / 62 | XL | |
| 62 / 63 | XXL | |
| 64 / 65 | XXXL |
| Circumference (cm) | Size children |
| 48 / 49 | Child S |
| 50 / 51 | Child M |
| 51 / 52 | Child L |
