Abstract: A safety harness for a passenger in an automobile in which a light-weight vest is worn by the passenger and is connected to standard seat belts by integrally carried belt means on the vest. The vest is fastened by a Velcro fastener which is adjustable and can optionally have a crotch strap which may be permanently fixed or adjustable by a Velcro fastener or strip. The vest is adapted so that a wearer may recline on a seat and still be protected by the vest which will hold the wearer in a generally reclining position in the event of an emergency.