Blueberry One-Size Simplex All-In-One Diaper with Organic Cotton

20 reviews

One size fits most from 10 pounds to 35 pounds.

Stock Status: In stock. Usually ships the same or next business day.

discount deal   Buy any 6 Blueberry waterproof items to save 5%.  Includes Capri,  Wet Bags and Simplex, too.  See the discount appear in your cart.

Limited edition prints: Deep Blue Sea, Pandas, Night Owls, Rainbows, Narwhals

Blueberry One-Size Simplex Images Link

Blueberry Diapers logo One-Size Simplex All-In-One Diaper cotton or stay -dry inner built-in choice. Made in USA.

Blueberry One Size Simplex AIO Chickadeecloth diaper frog printBlueberry One Size Simplex AIO This Little PiggyBlueberry One Size Simplex AIO Diaper Bears and the BeesBlueberry One Size Simplex AmbrosiaBlueberry One Size Simplex OctopusBlueberry One Size Simplex Rose Blueberry One Size Simplex Jungle JamBlueberry One Size Simplex Blueberry BloomsSimplex One Size HummingbirdsSimplex One Size ShadowsSimplex Deep Blue SeaSimplex PandasSimplex Night OwlsSimplex LlamasSimplex BalloonsOne Size Simplex Old MacdonaldOne Size Simplex BouquetOne Size Simplex Avocado

The diaper has pocket openings on both ends that allows you to increase the diaper's absorbency by adding extra inserts (also called doublers).  This also enables any extra stuffed-in doubler or insert to agitate itself out in the wash. (Note from Karen: in theory should but it might not depending on your machine and the contents of the particular washload. Even so, they wash quite well for an all-in-one style diaper.) Half of the soaker pad is attached, while the other half also comes out through one of the pocket openings during the washing cycle. 

 It is made with a waterproof outer layer and 10 layers of 100% cotton birdseye fabric in the wet zone and one side of the flap has stay-dry fabric.

inside an organic diaper
The unique thing about this diaper is that it has an attached stay-dry microfleece layer on the soaker pad that will keep your baby's bottom dry. To use this feature, simply pull out the other half of the attached soaker pad and lay it over the body of the diaper.
organic cotton diaper inside
If you prefer all natural fabrics touching your baby's skin, simply keep the unattached portion of the soaker pad tucked inside the pocket. This way the stay-dry part of the soaker is tucked inside and only cotton touches baby in the wet zone.


on 14 pound baby on a 13 pound 10 ounce baby. The fit is snug to the body. It doesn't sag and it is not poofy.

Look for matching Wet Bags 

Customer Reviews
4.6 Based on 20 reviews
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United States United States
Not worth the price for us

I honestly can’t believe how many 5 star reviews this diaper has! It’s my least favorite diaper that we own. We also have grovia and thirsties AIOs, and have never had leaks blow outs with those. However if baby poops with the blueberry AIO on it’s pretty much guaranteed to blow out around his legs! I have a pretty good idea of when he’ll poop throughout the day, so I only put this one on him when I’m not worried about it. Bummed that it didn’t work better for us, especially since it was so expensive.

Amber D.
United States United States
I like this diaper

I have mixed feelings about this diaper. The first one I got from green mountain diapers seemed pretty thin in absorbency… I was kind of taken back and wondered what all the fuss was about. A tear developed after its first initial wash, so I contacted blueberry and they sent me a new diaper which seemed superior in quality than the first one.. (?) The first diaper was made with what I would call “prefold fabric”. The second diaper had Birdseye cotton. So I do like the second diaper. (More absorbency) That being said, I do feel that it is pretty over-priced. It probably won’t fit my 20 pound 4 month old very much longer, as she has only one snap on each side left to grow into. I like the rolled leg elastics and I like that I can add absorbency. I will say that this diaper has never been enough absorbency for my daughter on its own. I do find myself reaching for it though, so..

Ananda B.
Vermont Vermont
No blow-outs. soft & organic

Excellent organic diaper - no blow-outs yet! and we've struggled with many different diapers.

United States United States
Favorite AIO, esp. for daycare

I love these! My baby is now 1, and we started these when she went to daycare at 6 months. They are the best. They never leak, rinse well with a sprayer, and haven't given me any issues like the Thirsties AIOs have. They fit her well, and she's 20lbs with a smaller waist but muscular legs. I had an issue with a snap once, and Blueberry customer service was fantastic.

samantha r.
Missouri Missouri
It’s our favorite

We have moved to AIO for nighttime and this vs the thirsties (which we do like), is our favorite. It’s not too bulky and our LO stays dry all night. She is 10 lbs and 11 weeks old.

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