Many people are unsure whether or not they should invest in a newborn cloth diaper stash. A big factor in that decision comes down to how long would you use a newborn stash for and how soon can you get into one-size diapers?

Check out this post where I discuss whether purchasing a newborn stash is worth it: Are Newborn Cloth Diapers Worth It?

Can Newborns Wear One-Size Diapers?

While most cloth diaper manufacturers have a bottom weight range of 8 pounds on their one-size diapers, most people are of the opinion that 8 pounds is still too small for one-size. The diapers are too bulky and often have leg gaps when they are that little.

Plus, many babies are born smaller than 8 pounds. My first two babies were only 6 pounds at birth!

Most newborns will not be ready for one-size diapers when they get home from the hospital. For that reason, many people purchase a stash of cloth diapers specifically in a newborn size.

How Soon Can A Baby Get Into One-Size?

It really depends on the brand of diapers you choose to use. Some diapers run bigger than others.

I put my babies in one-size diapers around 10-pounds. Actually, with my first two babies, I moved them into one-size around 9.5 lbs, but will admit that 10-lbs was much better fit.

Some people like to wait longer, such as 12 lbs. That may work for many people, but for my family, by the time my babies were 10-lbs, my newborn diapers were not able to keep up with my heavy-wetter babies anyway.

How Bulky Are One-Size Diapers On Newborns?

In hindsight, I wish I was able to capture some photos of my daughter in one-size diapers when she was stil 8-9 lbs, but I didn’t think of it since I was primarily using my newborn stash.

However, I thought it might be helpful for people to see what one-size diapers look like on a 10-lb baby with an average build. This may help you decide what kinds of diapers you want to add to your stash, and how much you want to invest in a newborn diaper stash.

*Disclosure: I took these photos over the course of about 10 days, so some of these photos may be photos of my daughter in the lower 10-lb range, and some of them may be closer to 10.5 lbs.

Lalabye Baby


Grovia All-in-One

grove all in one 10 lbs

Thirsties Natural All-in-One

thirstier natural aio

Smart Bottoms All-in-One

smart bottoms aio

Nicki’s Diapers Bamboo All-in-One

Nickis bamboo aio

Grovia Hybrid (with stay dry insert)


Rumparooz Pocket Diaper (with newborn prefold for insert)

rumparooz 10 lbs

Alva Baby Pocket Diaper (with newborn prefold for insert)

Alva Baby 10 lbs

Grovia ONE

grove ONE

Imagine Baby All-in-One

imagine baby aio 10 lbs

Which Fit Best?

As you can see, all of them fit well enough to be used at 10 lbs on an average baby. Some are bulkier than others. My favorite diapers to use at 10 lbs are the Grovia All-in-Ones, Imagine Baby All-in-One, Lalabye Baby, Smart Bottoms All-in-One, and Thirsties Natural All-in-One.

My least favorite are the Nicki’s Bamboo All-in-Ones, Alva pockets, and Rumparooz pockets.

When did you start using your one-size stash? Let me know in the comments!