Speedo Kids' Begin to Swim Personal Flotation Device One size: 30-50 lbs./chest size 20-25" US Coast Guard approved for superior safety Durable nylon shell with soft polyester interior lining for maximum comfort Silhouette offers great ease of movement and comfort for continuous wear One size: 30-50 lbs./chest size 20-25" Made by Speedo, the world's #1 swim brand