The DonJoy Reaction knee brace utilizes an elastomeric web design, which absorbs shock and shifts the peak loads away from the painful area of the knee. This dispersion of energy helps reduce the anterior knee pain you suffer from.
Another advantage of the elastomeric web is it dynamically stabilizes the patella on all sides, thus bringing the patella into proper tracking position to reduce pain caused by general patellofemoral instabilities.
Special Note for Measurement of Your Size:
Sizes: Available in sizes: XSmall/Small, Medium/Large, XLarge/XXLarge and XXXLarge
Take the measurement of your thigh 6" (15cm) above your kneecap using a flexible type tape measure. Use the diameter to choose your size.
Size | Thigh | Calf | Knee Centre |
X-Small | 33-39cm | 25-30cm | 30-33cm |
Small | 39-47cm | 30-35cm | 33-35cm |
Medium | 47-53cm | 35-40cm | 35-38cm |
Large | 53-60cm | 40-45cm | 38-43cm |
X-Large | 60-67cm | 45-50cm | 43-48cm |
XX-Large | 67-75cm | 50-55cm | 48-53cm |
XXX-Large | 75-81cm | 55-60cm | 53-58cm |
https://sportsbraces.com.au/3-things-you-need-to-know-about-wearing-a-knee-brace/