A rehabilitation aid for use by persons having a need for a sling. The rehabilitation aid can be incorporated into an article of clothing and have a sleeve positioned beneath an arm of a user. The sleeve can be configured to support at least a portion of the weight of the arm and help to substantially immobilize, constrain, or restrict the movement of the upper arm. An adjustable attachment can be included to adjust arm angle. Reinforcements can also be incorporated to help distribute supported weight throughout the article of clothing.
