An arm sling provides elastic elongation to accommodate arms of differing lengths. Wedge shaped blocks are engagable with the sides of the sling to provide abduction of the sling. The sling is made predominantly of a net material so as to provide air circulation around the supported arm. An elastic sheet material supports the hand of the supported arm. A shoulder strap provides a movable cushioned pad for comfortable use of the sling as held by the strap.
