Abstract: An illuminated safety harness adapted for wearing with or without a vest, and having a battery compartment in its belt connected through a switch to lamp sockets fixed on each shoulder. Each lamp socket is designed for a flashing light bulb. The harness has a plurality of reflective, luminescent or phosphorescent patches on its front and back to increase the visibility of the wearer during conditions of poor visibility. The elements of the electrical system are held in the harness which is fitted with snaps so it may be fastened to a vest, or to straps which fasten it directly about a user. The vest is preferably reversible with one side of a white reflective material for night use and the opposed side of a brightly colored material for daytime use.