This sling has an arm cushion that supports the arm and immobilizes it at 15 degree or 30 degree external rotation angles. Its modular design features a three point strap system which provides the best quality stability. It comes in blue. It has a proven closure system which makes the device easy for the wearer to put on. It is ideal for use after a rotator cuff surgery. It is also used to treat decompression of the mescus, decompression of portions of the capsule, immobilization following a shoulder prosthesis implantation surgery, and bursitis.