Mine is tiny, so I'm no help there, but...I haven't put mine in a swim diaper this year. He's not potty trained, but has predictable bowel movements and has never pooped in a swim diaper yet. Swim diapers don't contain pee anyhow. His swimsuit has "built in underwear" anyhow.
Mine is tiny, so I'm no help there, but...I haven't put mine in a swim diaper this year. He's not potty trained, but has predictable bowel movements and has never pooped in a swim diaper yet. Swim diapers don't contain pee anyhow. His swimsuit has "built in underwear" anyhow.
Are you in a public pool or your private pool when you don't put him in a swim diaper? Please say private.
"Seriously, mommy forum people are some crazy ass bitches." New Year New You
Mine is tiny, so I'm no help there, but...I haven't put mine in a swim diaper this year. He's not potty trained, but has predictable bowel movements and has never pooped in a swim diaper yet. Swim diapers don't contain pee anyhow. His swimsuit has "built in underwear" anyhow.
Are you in a public pool or your private pool when you don't put him in a swim diaper? Please say private.
I guess I didn't think of places having a rule! We use family and friends' private pools. Still, he's never pooped while swimming...
Mine is tiny, so I'm no help there, but...I haven't put mine in a swim diaper this year. He's not potty trained, but has predictable bowel movements and has never pooped in a swim diaper yet. Swim diapers don't contain pee anyhow. His swimsuit has "built in underwear" anyhow.
Are you in a public pool or your private pool when you don't put him in a swim diaper? Please say private.
I guess I didn't think of places having a rule! We use family and friends' private pools. Still, he's never pooped while swimming...
It's just not polite of you to take the risk.
"Seriously, mommy forum people are some crazy ass bitches." New Year New You
Mine is tiny, so I'm no help there, but...I haven't put mine in a swim diaper this year. He's not potty trained, but has predictable bowel movements and has never pooped in a swim diaper yet. Swim diapers don't contain pee anyhow. His swimsuit has "built in underwear" anyhow.
Are you in a public pool or your private pool when you don't put him in a swim diaper? Please say private.
I guess I didn't think of places having a rule! We use family and friends' private pools. Still, he's never pooped while swimming...
It's just not polite of you to take the risk.
Like I said, his trunks have a built in (solid, not mesh) underwear like a swim diaper. And Mom and MIL just put the kids in naked, so I'm a step more prepared than the owners of the pool. OP: I don't know of any bigger sizes. What does he normally wear for diapers?
Re: Swim diapers for big kid help!
Mine is tiny, so I'm no help there, but...I haven't put mine in a swim diaper this year. He's not potty trained, but has predictable bowel movements and has never pooped in a swim diaper yet. Swim diapers don't contain pee anyhow. His swimsuit has "built in underwear" anyhow.
I guess I didn't think of places having a rule!
We use family and friends' private pools. Still, he's never pooped while swimming... 
Like I said, his trunks have a built in (solid, not mesh) underwear like a swim diaper. And Mom and MIL just put the kids in naked, so I'm a step more prepared than the owners of the pool. OP: I don't know of any bigger sizes. What does he normally wear for diapers?
DD is a big two year old and the 3T Finis swim diaper is huge on her. The size chart says the 4T goes to 45lbs; I would give that a try.