I've tried Bummis Swimmi and My Swim Baby-both were great, no leaks. Ones that open on both sides (swimmi, Applecheeks) are easier for poop, no mess on the leg. The Swimmi has great velcro, which gets a great fit and lasts, but also snags your swimsuit unless you put something over LO. It's my fave for under a suit though!
We use Blueberry Freestyle. We use Blueberry Capris for regular use, so Blueberry was an obvious choice for us. I second the comment about sizing down though.
Re: Swim Diaper Opinions