I love the IttiBitti snap in ones they are nice and trim for bubs on the go! lol
Also the Swaddlebees OSFM pockets are great too. they have a narrower crutch so not so bulky.
Like Mel, we also love the BumG OSFA pockets.

For ultimate trimness though, cant go past the IB
If you like I can post you a medium for you to try?

ETA - come on over to the cloth nappy gab-fest lol the girls will have a lot of info for you too Always good to have another lovely to enable lol