Knee immobilizer (19-inch) is an excellent brace to immobilize, support and protect the injured or operated knee while it recuperates. Anatomically contoured aluminum back splints : Ensure perfect immobilization and light in weight. Aluminum side splints with relief : Ensure perfect immobilization and ensures no hot spots on knee protrusions. Body of PUF fused fabric : Ensures proper cushioning, enhanced comfort, long life and anti-slip properties. Extra patellar strap : Improves immobilsation, offers extra protection to the knee and removable when not required.