Wing Mayhem L50 Infant Life Vest - Yellow/PinkWing Mayhem L50 Infant Life Vest The Wing Mayhem is an Infant L50 certified life vest built with a full neoprene outer, a plush chin rest, and a neoprene padded crotch strap. The L50 rating gives Australian Standards approved buoyancy at the smallest end of the certified vest market for children 10 25kg. The safety neoprene grab handle on the back lets a parent lift the child cleanly out of the water without grabbing at the vest body. Full neoprene