Kids' Swimsuit for Swimming Lessons Size 100 Separate type Name on tag is marked out No pilling on the bottom, etc. - minimal signs of wear I bought this when my child started swimming lessons at age 3, but they quickly outgrew it, so it hasn't been used much. It might run a little small for the size, so it's best for 2-year-olds or children with a slender build. Perfect for water play at nursery or for baby swimming lessons where any swimsuit is allowed!