What is All in One cloth diaper? (for working mother especially)

(26 month baby on All in One cloth diaper)

What is an all-in-one diaper (AIO)?

An all-in-one diaper is a diaper and cover built together so it's one piece. All-in-one ("aio") diapers do not require a cover, because the cover is sewn onto the diaper already, hence the name "all-in-one".
All-in-one diapers can be used full time for the easiest possible method of cloth diapering. While still a bit less expensive than disposable diapers, they are more expensive than separate diaper and cover systems. But the convenience of the all-in-one diapers can't be beat!

Even if you choose a separate diaper and cover system, it’s great to have at least a few all-in-ones on hand for times when you’d like the extra convenience of an all-in-one.

All-in-ones are the perfect diapering choice for those who are making the switch from disposables to cloth for the first time. They are so easy to use! But, because the waterproof layer connected to the diaper, it takes a beating at washtime and aios in larger sizes do not last as long as separate diaper and cover systems. But the convenience can't be beat.

We don't recommend aios for overnight or long-term diapering (long-term diapering means going a very long time between changes), unless you use a doubler or 2 and a cover over it.
(Exception: aios may be a good choice for overnight for a child who is transitioning to becoming night toilet trained, because of the ease of getting them on and off to use the toilet and the because of trimness of them, which is usually more acceptable and comfortable to day-trained children who are used to underwear, but need something still at night just in case.
AIOS are great for potty learning.)

Xtra Small 4 to 9 pounds (for brand new newborns or large preemies)
Small 10 to 19 pounds (compares to size 2 and 3 disposable)
Medium 19 to 30 pounds (compares to size 4 disposable)
Large 28 - 50 pounds (age 2 to age 5, quite a bit more rise than a medium, snap version has 2 rows of snaps)