A shoulder and arm orthosis assembly for supporting at least one of a shoulder, arm, wrist and hand of a user in a desired position. The orthosis assembly provides a reconfigurable sling with a reconfigurable shoulder strap, a reconfigurable wrist/hand orthosis, and a reconfigurable pillow support to hold the arm of the user away from the body. The reconfigurable sling has attached inner and outer portions that are configured to be at least partially detached and reattached with one another and has indicia thereon to assist in support placement. The reconfigurable wrist/hand orthosis may be supported by the reconfigurable sling when it is closed and may be permitted to exit the sling when the sling is opened while continuing support for the arm of the user.
