Measure the circumference of your calf at the widest point when stood with a flat foot and straight leg.
| Size | Range (cm) | Range (Inches) |
| Small | 28cm - 33cm | 11" - 13" |
| Medium | 33cm - 38cm | 13" - 15" |
| Large | 38cm - 43cm | 15" - 16.9" |
| XL | 43cm - 48cm | 16.9" - 18.9" |
| XXL | 48cm - 53cm | 18.9" - 20.9" |
If you are between sizes it is advisable to go for the larger size.