Boys' Swimsuits, Size 100 Pikachu and Anpanman Set of 3! The size label on the Anpanman swimsuit says 100. The Pikachu ones aren't clearly labeled, but they're about the same size, so I think they're around size 100. The light blue Pikachu swimsuit has a tear in the back. The navy blue Pikachu swimsuit is missing the waist string that came with it, but it doesn't fall down when worn. Both the navy blue Pikachu and the Anpanman swimsuits show signs of wear, such as pilling on the seat. These are used items, so please understand before purchasing.