Step 7:
Apply snaps. I use size 20 resin snaps. Also, I eyeball their placement in the middle of the wings spacing them about 1-1/2” from middle of snap to middle of snap.
Open dipe - you can see my snap placement. I like to have two front snaps to prevent wing droop.
Completed AIO:
Step 8:
Wash and dry on hot to seal up the holes in the PUL or you will probably have some wicking with the first use.
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Other notes on using these diapers:
Sometimes the pre-fold likes to stick out at the leg holes so just tuck it in. When I’m changing dd, after I close the diaper I do a quick finger sweep along the leg holes pushing anything that is sticking out in.
For added absorbancy, I made a bunch of lay-in doublers out of two layers of hemp french terry (hemp fleece would work too) and a layer of microfleece.
If you want the back gathered some, you could add a piece of elastic at the same step where you are adding the leg elastic - you would need to leave your opening for turning in the front then though or closer to the wings.
Let me know if you have any questions.

Now you can make your own AIOs for just a couple of dollars and a little bit of time. Happy diaper sewing!
ETA: Modeling pics and some Q&A on page 2
~Becky