I have been having leakage problems with my Flips so while researching how to fix this problem (which I sorta did) I discovered a new brand that makes a lot more sense to me... I am not sure why I did not get these before...
They are called GroVias and here is a small review.... (GroVias on the left, Flips on the right)
The Shells:
Compared to the Flip, the GroVia shells are skinnier and also have a layer of mesh while the Flips just have the waterproof PUL exposed. Also the snap system on the G's work side by side, while the snaps on the F's are stacked. When they are side by side, I find the closure is a lot more secure.
The Inserts:
For each brand of diapers, there are different options for the inserts. For the Flip diapers you can get a cotton/Polyester blend, organic cotton, as well as disposables (I think the disposables are silly...) The organic cotton is of course more expensive. For the GroVia diapers, there's hemp/cotton blend, organic cotton and disposables too. I liked how there was a choice between natural fibres and they were the same price.
The G inserts (soaker pads) have a more contoured shape that fits nicely to the baby. Also, they have a few more layers to increase absorbency. There's elastic gussets on the legs that prevent leakage. Theres also a water resistant layer on the back. The F inserts are very plain. They are thin, flat, wide are there isn't any water resistant layer. What I like about the G's is that they snap onto the shell whereas the F's just tuck into the shell... The GroVias pads are definitely more stable in there.