The Best Onesies For Babies

Whether you're caring for a newborn or a toddler, baby onesies are a staple. Although they might seem like a simple purchase to make, there are a lot of options on the market. Between material type, sleeve length, sizing, and style, there's a lot to consider. Whether you're shopping for your baby or someone else's, we made a list of the best onesies to buy to make your search easier.

What to Look For

When looking for the best baby onesies out there, we thought it was important to focus on quality, versatility, and style. Gerber’s eight-pack of onesies is a classic in the onesie world and with good reason. They’re high in quality, simple, and a pretty good bargain. If you’re looking for a little more pizazz in your onesies, then Hudson Baby’s unisex cotton onesies come in a five-pack of cute color and pattern combinations. Read on for more about the best onesies on the market.

Gerber Short Sleeve Onesies for Babies, 8 Pack

The best of the basics

This eight-pack of classic baby onesies is simple yet high in quality.
Best Overall

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Every baby wardrobe needs the basics, and these simple cotton onesies from Gerber set the bar high. This eight-pack is not only affordable but also offers a variety of options to choose from, both plain and patterned. Plus, the overlapping material at the shoulders allows the onesie to expand easily, making it easy to put it on quickly.

Pros:

  • These onesies are made from 100% cotton, which means they’re highly breathable and very soft.
  • We love that you can choose from a variety of colors and patterns.

Cons:

  • These onesies are lightweight, so they might not offer the most warmth.

Hudson Cotton Onesies, 5 Pack

Furry friends and fun patterns

These soft, cotton onesies come in tons of fun patterns.
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For fun colors and patterns, you can’t go wrong with these onesies from Hudson. The onesies in this playful five-pack are made of 100% cotton and have an adjustable neckline. Not only are they affordable, but they also stand the test of time.

Pros:

  • This five-pack comes in a wide variety of themed patterns to choose from.
  • These cotton onesies are super soft while also being durable and long-lasting.

Cons:

  • Since they’re made of 100% cotton, these onesies may shrink the first time they’re washed.

Hudson Baby Cotton Long-Sleeve Onesies, 5 Pack

Warm up with sleeves

Try this five-pack for a warmer take on the classic onesie.
Best Long Sleeve

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If it’s something warmer you’re searching for, then give these long-sleeve onesies from Hudson Baby a try. The onesies are made from 100% cotton, and you can choose from a variety of color and pattern options. We think these high-quality baby onesies would be perfect for layering in cooler weather.

Pros:

  • These onesies are a little thicker than others, adding some extra warmth.
  • If you’re looking for super soft material, you’ll have trouble finding anything comfier than these onesies.

Cons:

  • They tend to shrink on the first wash, so you may want to size up.

Amazon Essentials Sleeveless Onesies, 6 Pack

Go sleeveless

Keep it cool with these sleeveless, breathable onesies.
Best Sleeveless

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Whether short or long, most onesies come with some kind of sleeve. Usually that’s fine, but in some situations, you might not want onesies with sleeves, which is why this six-pack of sleeveless onesies from Amazon Essentials is such a great find. You can break them out during warmer weather or for layering on any day. If you’re looking for high-quality sleeveless onesies at an affordable price point, this is your pick.

Pros:

  • As an added detail, these onesies have a ribbed texture that makes them extra breathable.
  • These baby onesies can act as an undershirt and are easy to layer.

Cons:

  • The material in these onesies is definitely on the thinner end.

Simple Joys by Carter’s Short Sleeve Onesies, 5 Pack

Snap to it

These onesies feature a snappy twist that sets them apart.
Best Side Snap

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We love finding a different take on a classic style, and these side snap onesies from Simple Joys by Carter’s are a great example. Unlike a typical onesie that you pull over a baby’s head, these open on the side with strong snaps. Not only does this give you more control on the changing table, but it also gives the simple onesie design some extra flair.

Pros:

  • The side snaps on these onesies are super convenient and make diaper changing easier. This style also keeps the neckline of the onesie from stretching out too much.
  • The material of these baby onesies is noticeably thick and high quality.

Cons:

  • The snaps can take some getting used to as it adds a couple of steps to getting your baby dressed.

Frequently Asked Questions

At what ages do babies wear onesies?

Babies can generally wear onesies until the 24-month-old mark based on the sizes available. However, anytime from 12 months until 24 months is when babies tend to transition from onesies to regular clothing. Ultimately, the decision to stop using onesies is a personal one with no right or wrong answer.

What is a onesie?

Just like it sounds, a onesie is a one-piece outfit for a baby or newborn. It’s made to be light and breathable with easy access to the diaper. Onesies also come in a variety of fun designs.

What size onesie should I order?

Since onesies can be worn from the time a baby is a newborn to a toddler, there’s a big range in sizing. Luckily, onesie sizes are usually broken down by age, so instead of small, medium, or large, you can choose between 0–3 months, 3–6 months, etc. If the baby you’re shopping for is between sizes, it’s better to go for the looser option, so they won’t be restricted and will have room to grow.

About the Author

As a shopping commerce and style writer, Grace loves all things fashion. From shoes to dresses, Grace spends her days discovering new trends. What’s more, she knows how to find the right look for every budget. When she’s not writing, you’ll find Grace pursuing her graduate degree in Data Science Journalism.

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