The Barbie Swim Vest (Medium) is lightweight, comfortable and a fully adjustable flotation aid. Ergonomic contoured design ensures unrestricted body movement. Made from durable nylon, soft closed cell foam construction. 60/40 buoyancy front and back allows normal movement. The wearer should be under constant, competent supervision, that the supervisor should be within arms reach of the wearer. Weight limit 20-30kg.