Lateral “J” Patella Knee Brace

Drytex Lateral “J” Stabilizes the kneecap to prevent dislocations and alleviate pain.

The DonJoy Drytex Lateral “J” knee brace is our most popular patella stabilizing brace. The brace is equipped with a tubular, lateral “J” buttress that runs alongside the knee and provides support against lateral patellar subluxation, dislocations, or improper patellar tracking. The Lateral J knee brace can be worn during day-to-day activities, as well as sports.
Drytex is DonJoy’s (DJO) exclusive solution for patients with neoprene sensitivities or those who prefer less warmth from their bracing. Constructed of a unique patented nylon core and polyester Lycra fabric, it allows for improved airflow while still giving ample support and compression. Perfect for people in warm weather climates and those with neoprene allergies or irritations.

This product is currently out of stock and unavailable.

The DonJoy Drytex Lateral “J” knee brace is used to treat or prevent the following injuries:

  • Dislocating Kneecaps (Patellar dislocation)
  • Lateral Patellofemoral Malalignment
  • Lateral Patellar Subluxation
  • Chondromalacia


Product Features…and the benefits you’ll experience!

  • Tubular, Lateral “J” Buttress
    Helps stabilize your kneecap (patella). Available in left or right configuration.
  • Lateral to Medial Straps
    Provides additional stabilization and you get to adjust the straps to provide the support that you need.


Sizing and Measurements


Take the measurement of your thigh and calf 6″ above and below your kneecap using a flexible type tape measure.  Use the diameter you measure here to choose your size.


Size Thigh Knee Center Calf
XS 13″ – 15 1/2″ 12″-13″ 10″-12″
S 15 1/2″ – 18 1/2″ 13″-14″ 12″-14″
M 18 1/2″- 21″ 14″-15″ 14″-16″
L 21″- 23 1/2″ 15″-17″ 16″-18″
XL 23 1/2″ – 26 1/2″ 17″-19″ 18″-20″
XXL 26 1/2″ – 29 1/2″ 19″-21″ 20″-22″


1. Stand with your legs shoulder-width apart, legs slightly bent and leg muscles contracted.
2. Measure up six inches from the center of your knee with a tape measure, as shown.
3. Measure the circumference of your thigh at the 6-inch mark, as shown.
4. Measure down six inches from the center of your knee with a tape measure, as shown. Then measure the circumference of your calf at the 6-inch mark.
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