i play. Boys Trunks with Built-in Reusable Swim Diaper | The original, patented triple-layer absorbent swim diaper |  Comfort seams, UPF 50+ protection, No other diaper necessary 100% Polyester Imported Machine Wash helps provide ultimate, secure protection for babies & swimmers no other diaper necessary! built-in, lightweight diaper encourages swimming approved for public pools economical & creates less wasteuse & reuse