Imse Vimse's reusable swim diapers are designed to contain messes while baby is in the pool.
The reusable diapers fit snugly but comfortably, and feature side snaps that make them easier to put on and remove. Available in sizes from newborn (9-13 pounds) to junior (35-44 pounds) Imse Vimse swim diapers come in several adorable patterns and cost less than $14.00.
Although my little guy has never pooped during a trip to the pool (knock on wood), I'm confident in his Imse Vimse's ability to hold in a mess. Although some reviewers have noted that the diapers tend to run small, I still have my 18 pounder in the size small, which is only supposed to fit up to 17 pounds. Although the diaper can fit nicely under any boy's or girl's swimsuit, I love the way it looks on its own.