So, I bought a Flip Diaper to try out a while back, and I'm just now getting around to talking about it. The Flip One-Size Diaper System is a diaper that is composed of an insert and a diaper cover. Basically, you place the insert in the cover and that's it. No pins or other types of fasteners are needed because the cover holds the insert into place with a little pocket, or flap, on the front and back. You can choose between a microfiber insert and an organic cotton insert. The cover and the insert are one size, so it grows with your baby.
The cover is very nice. It has contoured legs so it fits snugly to your baby. It has a double row of snaps for closure, so no hook and loop (Velcro) is there to snag your other diapers in the wash. I have not only used this cover with the flip insert, but with other prefolds and WAHM inserts as well. I haven't had a leak yet, and I've used it overnight too. The only problems I have found with the cover is that I only have one! The washing instructions say to line dry the cover, so that might be important to note.
Although I haven't had a problem with the stay dry microfiber inserts from Cottonbabies, I chose the organic cotton insert because I have less stink issues with the cotton than I do the microfiber. It's just my preference. The cotton insert is a prefold diaper that has some serious absorbency power to it. It could beat any diaper I have at the moment in a leak test. My only complaint (and it really isn't a big deal) is that the insert can be a bit bulky. It is not as bulky as a fitted that has the same amount of leak protection, though. I did have a bit of trouble at first getting the diaper to fold under the flap in the cover that holds it in. I mostly had trouble because I wasn't used to the thicker insert. As for washing, no problems. It dries as quick as a pocket diaper insert and quicker than many all-in-ones.
Overall, I would highly recommend this diaper to mommies and daddies. It is easy to use, has superior leak protection, and it is cheaper than my organic all-in-ones. I'm happy with it, and I think others will be too!