Knee Brace Size Chart Measure at three points on the leg, and use the chart to determine the size required – Thigh 15cm above mid-patella – Knee, mid-patella – Calf 15cm below mid-patella If one of the three measurements is a size up, select that size. For example, Thigh Size Medium, Knee Size Large, Calf Size Medium. Order Size Large Watch a video of how to measure for your DonJoy knee brace SIZE CHART Size Thigh Knee Centre Calf XS 13”-15.5” (33-39cm) 12”-13” (30.5-33cm) 10”-12” (25.5-30.5cm) S 15.5”-18.5” (39-47cm) 13”-14” (33-35.5cm) 12”-14” (30.5-35.5cm) M 18.5”-21” (47-53.25cm) 14”-15” (35.5-38cm) 14”-16” (35.5-40.5cm) L 21”-23.5” (53.25-59.5cm) 15”-17” (38-43cm) 16”-18” (40.5-47cm) XL 23.5”-26.5” (59.5-67.25cm) 17”-19” (43-48.25cm) 18”-20” (47-50.75cm) XXL 26.5”-29.5” (67.25-75cm) 19”-21” (48.25-53.25 cm) 20”-22” (50.75-56cm) XXXL 29.5”-32” (75-81.25cm) 21”-23” (53.25-58.5cm) 22”-24” (56-61cm)
