Disposable Swim Diaper
The disposable swim diaper, like the “Little Swimmers” brand keeps the pee-pee from leaking out in the pool. These “swim diapers” are specific to swimming; a regular diaper will take in the water and often explode oozing the inner part of the diaper into the pool. You can usually find them at any store that is also selling regular diapers.
Reusable Swim Diaper
The reusable diaper, like the Finis brand swim diaper to the right, has elastic bands at the belly and the legs to contain the poopy. While blowouts can happen as all parents know, these dramatically reduce the fecal exposure to the pool water. You can get these diapers at chain stores like Target or Walmart or at baby stores like Buy-Buy Baby. You can also google “reusable swim diapers” for more options than you ever wanted.