| Size | Small | Medium | Large | X Large | XX Large | |
|---|---|---|---|---|---|---|
| Thigh circumference (cm)5 cm above the top of the kneecap | D | 38 – 48 | 46 – 56 | 53 – 63 | 61 – 71 | 69 – 79 |
| Calf circumference (cm)30 cm below the top of the kneecap, at the bony knob below the knee | C1 | 29 – 39 | 34 – 44 | 39 – 49 | 46 – 56 | 54 – 64 |
Standard (closed patella).