Abstract: The present invention is in a universal forearm sling and humeral stabilizer that consists of a sling sack that is open along a top edge and at a wrist end and is formed of outer and inner layers, the outer layer consisting of a thin fabric material that can be water repellant, and can include pockets formed therein, and the inner layer formed of a suitable material for protecting from the elements a patient's forearm supported therein. The undersurface of the sling sack is supported from end to end by a strap secured longitudinally thereto. The strap bisects the sling sack and extends from the closed sling sack end to become a shoulder strap that ends in a swivel. The swivel is to couple to a ring whereto the ends of a lateral strap are secured, which lateral strap encircles the sling sack, proximate to the open end. The sling sack closed end is angled at the preferred angle of seventy five degrees (75.degree.