Boys Floating Bathing Suit Flotation Swimsuit X-small, Small, Medium, Large Sharks & Frogs Style 85%Nylon/15% Spandex Promotes natural and proper balance in the water with non-removable strategically placed foam inserts Helps non swimmers learn to swim and be better prepared for structured swim lessons Promotes the development of muscles, coordination, endurance and confidence Sizes X-Small- 20-30 lbs, Small- 30-40 lbs, Medium 40-50 lbs, Large 50-70 lbs