Cloth Diaper Types Compared: AIO vs. Pocket, Prefolds & More

Before we dive into the details, here’s a quick head-to-head comparison of the most common cloth diaper systems. Use this chart to see how they stack up on key factors.

For many parents, the choice comes down to AIOs and Pockets. They are the most modern and closely resemble the convenience of disposable diapers.

All-in-One (AIO) Diapers

As the name suggests, everything is in one piece. The absorbent layers are sewn directly into the waterproof outer shell.

• Pros: Unbeatable convenience. No stuffing, no folding. It's a simple one-step process, making them ideal for daycare, grandparents, or anyone hesitant about cloth.
• Cons: They can be the most expensive option per diaper. Because all layers are sewn together, they take the longest to dry.

Pocket Diapers

A pocket diaper consists of a waterproof outer shell and a soft inner lining (like microfleece) that are sewn together on three sides, creating a pocket. You stuff this pocket with an absorbent insert before use.

• Pros: Highly customizable. You can choose the type and number of inserts to match your baby's needs. The shell and inserts dry very quickly when separated. They are generally more affordable than AIOs.
• Cons: The main drawback is the extra step of stuffing the pocket after each wash. It can be tedious for some.

If budget is your top priority, prefolds and flats are the most economical way to cloth diaper. Both are simple pieces of fabric that require a separate waterproof cover.

Prefold Diapers

Prefolds are rectangular pieces of cotton (or other absorbent material) sewn with a thicker, multi-layered absorbent panel down the middle. You fold it into a pad shape (a 'trifold') and lay it in a cover, or wrap it around the baby and secure with a pin or Snappi.

• Pros: Very inexpensive, durable, and easy to wash. They dry relatively quickly.
• Cons: There's a slight learning curve with folding. They can be bulkier than modern styles.

Flat Diapers

Flats are the original cloth diaper—a single large, square piece of fabric (like birdseye cotton). You fold it into the desired shape and size before securing it on the baby and adding a cover.

• Pros: The absolute cheapest option. They are incredibly versatile and can be folded in countless ways to customize fit and absorbency. They wash the cleanest and dry the fastest of any diaper type.
• Cons: They have the steepest learning curve, as they require more complex folding.

Fitted diapers are a powerhouse when it comes to absorbency, making them a go-to solution for specific situations.

What is a Fitted Diaper?

A fitted diaper is shaped just like a regular diaper with elastic at the legs and waist, and it closes with snaps or hook-and-loop. The key difference is that the entire diaper is made of absorbent material (like cotton, bamboo, or hemp). They are not waterproof and require a separate cover.

When to Use a Fitted Diaper

Because every inch of a fitted diaper is absorbent, they are the top choice for heavy wetters and overnight use. Paired with a quality wool or PUL cover, a fitted diaper can provide 12+ hours of leak-free sleep, which is a game-changer for many parents.

Newborns present a unique challenge: they are tiny, go through 10-12 diapers a day, and have liquidy poop. While some 'one-size' diapers claim to fit from birth, they are often bulky on tiny newborns.

Top Choices for the Newborn Stage

• Prefolds/Flats and Covers: This is often the most recommended and cost-effective system for newborns. You can get a perfect, snug fit on a tiny baby, and the system contains messes well. You only need a small number of covers, which can be wiped and reused, and a larger stash of inexpensive prefolds or flats.
• Newborn-Sized AIOs: If convenience is your priority, newborn-sized AIOs offer a trim fit and are incredibly easy to use during those frequent, sleepy diaper changes. The downside is the cost, as they will only be used for a few months.