Abstract: In an orthopedic device as a flexible contoured ankle stabilizer having a generally U-shaped "stirrup" member having a base portion and a pair of removably attachable opposed contoured vertical shells with a compressible medium disposed interiorly of the opposed contoured shells, the improvement wherein each of the opposed contoured shells has a heel bone extension protruding generally along and toward the back of the ankle in the vicinity of the heel; wrapping straps used to hold the contoured shells with heel extensions and attached stirrup base in place on the ankle and heel.