UPF50+ Swimsuit, Wave and Dolphin Design, Sizes 18 Months and 24 Months - Size: 18 months - Size: 24 months - Design: Blue wave pattern - Design: Dolphin pattern - Material: UPF50+ fabric Thank you for viewing. Used for water play at nursery school. The size 18 months one has a stain from food that was spilled while wearing it. It's a reusable diaper, so it was more economical than disposable ones and was a great help.