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

23 reviews

One size fits most from 10 pounds to 35 pounds.

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

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.

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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.

Matching wet bags!

Customer Reviews
4.5 Based on 23 reviews
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Melanie S.
California California
a good choice for day or night

I love the llama pattern I picked! This diaper is easy to customize by stuffing doublers in the pocket making it a good choice for day or night.

Stanley B.
California California
Blueberry and avacados, and frog diapers

This thing has More snap's and Way's to customize the fit and feel they are a amazing product best diapers ever I have everyone in the family send me one... thanks green mountain diapers Job well done

Andrea M.
California California
Not so much a one size fits all

Nice diapers, great quality but do not fit my 29 pounder well. They are too tight around his thighs and cause irritation if he wears them for too long. His thighs aren't chunky so I'm not sure why the fit so tightly. These diapers probably wouldn't work well for a bigger baby or toddler.

Green Mountain Diapers

Thank you for your review, Andrea. I've just reached out to you regarding your concerns and hope some of my ideas will prove helpful. Always feel free to contact us at for help with product concerns. Thanks for shopping with us! Elizabeth, GMD Customer Support

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..

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