Measure around the widest part of your calf, standing with your weight on both feet.
| Size | Calf (cm) | Calf (inches) |
|---|---|---|
| XS | Under 30 | Under 11.8 |
| S | 30 to 34 | 11.8 to 13.4 |
| M | 34 to 38 | 13.4 to 15.0 |
| L | 38 to 44 | 15.0 to 17.3 |
| XL | 44 to 48 | 17.3 to 18.9 |
Sizes from the Trimtex size guide.