How to Use an All In One Diaper
If you want a cloth diaper that
requires no pinning, folding, stuffing or separate covers—basically,
if you want to grab it, and go—then an All in One diaper is
probably the right diaper for you.

An All In One Diaper is a diaper that
has all the pieces you need sewn together in one, easy to use
package. Some All in Ones are made as if a fitted diaper and a cover
were sewn together. All All In One (AIO) Cloth Diapers are different,
however. Other AIOs actually have a pocket with an insert sewn
inside, so that you can still customize absorbency if you’d like.
Many AIOs these days have a tongue like insert—a strip of
absorbency that is sewn only at one end and can flap around in the
washer and dryer for easier cleaning. Sometimes these are attached
to a pocket and can be tucked inside or left outside the pocket to
suit the parents’ preferences. Despite how the absorbent layers
are sewn to the diaper to give it AIO status, one thing remains the
same from one brand to another—these diapers are super easy to use
and do not require any steps between the dryer or clothesline and
your baby’s bottom.
All in One Diapers are easy to use!
This tutorial will be using a Grovia
One Size AIO diaper. 
Grab your diaper, and lay it flat
underneath your baby. The back of the diaper will be at the top,
against your baby’s bottom with the closure wings laying on either
side, and the top of the diaper will be laying between their knees.
Pull the front panel of the diaper
up, between your baby’s legs and lay it atop their tummy, right up
to their belly button.
Grab the closure tabs from either
side and wrap them around to fasten at the front. Most closure tabs
will fasten over the front panel, but side-snapping diapers like the
Grovia AIO, fasten to snaps at the inside of each of the sides of
the front panel.
Check your fit to make sure it’s
not too snug—this is especially important for babies who can sit,
crawl, or walk because they’ll need a little give for all the
wiggling they’ll be doing. You want the diaper to fit snugly
enough to contain messes, but not so tightly that your baby will
have red marks at their waist and the tops of their thighs.

That’s it! Because AIO diapers
require no folding, pinning, or stuffing, they are the easiest and
quickest diaper to put on your baby!
Once you know how to use an AIO diaper,
you’ll find that pocket diapers and fitted diapers attach to your
baby much in the same way. The only difference is that pocket
diapers need to be stuffed first and fitteds require a cover.