A kit for supporting a patients arm includes a waist band, to be worn around the patients torso and having a first fastener a pillow having second and third fasteners and an arm sling with a fourth fastener attached to at least one of the panels of the arm pouch. The first and second fasteners are fastenable to and releasable from each other to releasably secure the pillow to the waist band, and the third and fourth fasteners are fastenable to and releasable from each other to releasably secure the sling to the pillow, to thereby secure the arm at an abducted position relative to the torso. The first and fourth fasteners may also be fastenable to and releasable from each other to releasably secure the sling to the waist band when the pillow is not present, to immobilize the arm at a non-abducted position.
