Onesies come in every shape, size, style, and print you can imagine, but the quality range can be broad. You don’t want baby clothes that are stiff or don’t fit right. You want to wash your favorite outfits without worrying about fading, pilling, or shrinking.
We’ve read thousands of reviews and compared fabric quality and countless designs. We’re confident we’ve found the best organic options, prints for nerds, designs for holidays, cold-weather styles, and many other cute and cozy everyday onesies.
We’ll explain what to look for when shopping for onesies and offer our tips for cleaning those tiny baby outfits.
Save your time and money, and check out our list of the best baby onesies.
The Best Baby Onesies of 2023
Here are 17 great onesies to consider.
Star Wars Short-Sleeve 5-Pack Onesies
Best Star Wars Baby Onesie
If you or your partner are Star Wars fans, these onesies are sure to be your favorite baby clothing items.
Choose from three sets of five onesies to suit any baby rebel. The fabric is a cotton and polyester blend, so it’s warm but breathable.
The expandable lap shoulders make it easier to dress your little one.
Although these are labeled as onesies for boys, there’s no reason your little girl wouldn’t look just as adorable in a “Little Trooper” or Wookie design.
Simple Joys by Carter's 6-Pack Short-Sleeve Bodysuit
Best Onesie Pack
Babies go through a lot of onesies, so if you find a style you like, it’s a good plan to get more of the same kind. This set of six comes in eight different styles. Each pack has six designs, so your baby can wear a different onesie almost every day of the week.
The 100% cotton fabric is super comfy and easy to machine wash once they get dirty.
The short-sleeved design is ideal for when the house is warm and cozy or during the summertime.
We also love the expandable necklines for growing bubbas. Plus, the overlapping design ensures they’re easy to take on and off.
Finally, the tagless design means your baby won’t get annoyed by itchy labels.
Babysoy Organic Baby Onesie
Best Animal Baby Onesie
The lightweight material works for dressing your baby in summer on cooler days, but it’s warm enough for winter wear and makes a great layering top. The long sleeves are suitable for chilly evenings.
The onesie is available in six unique and adorable animal prints, such as a rabbit, chimp, or wolf.
Babiy Logic Onesie
Best Nerdy Baby Onesie
If you’re a nerd at heart, you probably want your legacy to live on in your baby. This onesie comes in your choice of pink, white, or blue and has a programming code design.
The fabric is high-quality, 100% cotton, and the print is made with highly durable ink to survive multiple washes.
This onesie would make an adorable gift for programmer parents!
Burt's Bees Baby Unisex Baby Short-Sleeve Bodysuits
Best Organic Baby Onesie
What’s better than organic clothing for your little one? Burt’s Bees has you covered — especially if your baby is prone to skin irritation.
If you want something sweet, stretchy, and breathable — these 100% cotton onesies are ideal. And the fabric is almost as soft as your little one’s skin.
There are five adorable sets to choose from, each containing five bodysuits made by our favorite natural product creators.
Disney Baby Boys' Mickey 5-Pack Bodysuits
Best Disney Baby Onesie
Disney is a magical world — not only for kids but also for adults.
Return to the classics with these adorable Mickey and Minnie printed onesies. Or choose from one of seven other sets with characters like Winnie the Pooh, The Lion King, or a combination of other Disney favorites.
These bodysuits are made from a cotton and polyester blend, and the machine-washable prints don’t fade or run.
O2Baby Organic Cotton Onesie
Best Thick Baby Onesies for Winter
Keeping your little one warm is crucial. For colder weather, you might consider a long-sleeved onesie with legs.
This onesie is fitted with a zipper that runs down the front and legs, making it easy to put on and take off or open for diaper changes. Made from an organic cotton and spandex blend, it will keep your baby cozy even on the coldest nights.
The jumpsuit is available in a variety of colors and prints and sizes from newborn to 18 months.
Moon and Back Baby Set of 5 Organic Long-Sleeve Bodysuits
Best Soft Baby Onesies
When you put your baby down for the night, it’s always good to know they will be comfortable. Long-sleeved onesies are good for chilly nights — or days. The fabric on these onesies is softer, thicker, and warmer than many other brands, so you know your little one will stay warm and cozy.
These sweet and simple bodysuits are made from breathable, 100% organic cotton. We love that they come in gender-neutral colors that aren’t just the standard plain yellow and green.
Hudson Baby Cotton Long-sleeve Bodysuits
Best Cheap Baby Onesies
If you want to save money but don’t want to compromise on quality, these sets boast thousands of positive reviews and cost less than many other brands.
Choose from dozens of adorable prints to suit any style, all in a warm but breathable 100% cotton material that lasts through countless messes and cleanings.
These onesies come in sizes from newborn to 24 months, keeping you coming back for more when your little one hits a growth spurt. However, the sizing is quite generous, so if you need them to fit right away, don’t buy a size up.
Tstars You Can Do This Dad
Best Funny Baby Onesie
Baby clothes are not always easy to figure out. If your partner, like mine, finds it difficult to dress your baby without supervision, this humorous onesie guide is a great idea!
The onesie has expandable shoulders for easy dressing, saving tears from baby and daddy. It’s also made with 100% cotton and can be purchased in blue, pink, or white.
Gerber Unisex Baby 5-Pack Short-Sleeve White Onesies
Best Plain White Baby Onesies
Crafty mamas might enjoy customizing their baby’s clothes with fabric markers, tie-dye, or Cricut designs.
Or maybe you’re just practical and want something pure and simple or for layering purposes. This set is ideal if you are a “team green” mom-to-be.
These cotton onesies have double-stitched hems that will survive wash after wash. One thing to note is that they may shrink a little with washing, so buying a size larger could ensure they fit longer.
Little Treasure Baby Cotton Bodysuits
Best for Christmas
Tacky Christmas sweaters are a must-have. But if you want something cute for your baby to wear this Christmas that isn’t made of scratchy knit material, check out these adorable onesies.
They come in packs of three, and there are several Christmas designs to choose from, as well as other choices. We like the “Santa Baby” for girls, and this set is our favorite for boys.
The long-sleeved onesies have a wide-neck opening to fit over even the biggest noggins easily.
Luvable Friends Baby Cotton Bodysuits
Best Unisex Baby Onesies
If you don’t know whether you’re expecting a boy or girl, you might consider unisex clothing, which is also practical if you’re thinking of future siblings. And with so many color options, you don’t have to stick to only white.
These adorable Luvable Friends onesies are made from soft cotton. Many other color options are available, all in sizes up to 24 months.
Warner Brothers Justice League Bodysuits
Best Superhero Baby Onesie
Superhero designs are so fun for babies. These onesies are made from a cotton and polyester blend — soft and breathable — ready to take flight. And the overlapping shoulders and snap closures will help to make those superhero diaper changes even quicker.
Daddy will love showing off his new little man in any of these colorful onesies. And if you have a little heroine, you will love this set for girls.
Baby Thanksgiving Onesie Outfit
Best for Thanksgiving
Thanksgiving is a time for us to be grateful for everything we have and all the love we share. Here’s another thing to be grateful for — a chance to dress your little one up in a seasonal outfit.
When visiting friends or family, why not dress your baby in an outfit that reads “Daddy and Mommy’s Little Turkey!” The four-piece set is made of a cotton blend and includes a romper, pants, hat, and matching headband.
Kewlent 3Pcs/ Outfit Set
Best for Halloween
Our favorite time of year is when we can dress up in silly Halloween costumes and use our kids as an excuse to eat insane amounts of candy.
If you’re not into fancy dress-up clothes, you might like this brightly colored pumpkin outfit. The style and color would suit a boy or girl, and it includes a pair of pants and a matching hat, with the onesie reading “My First Halloween.”
The three-piece outfit consists of a long-sleeved bodysuit, pants with an elastic waist, and a matching hat.
AW Fashions One-Piece Baby Bodysuit
Best Vulgar Baby Onesie
A good list wouldn’t be complete without a little naughtiness, right? Whether you want something for your child or you need a sassy baby shower present, this onesie checks all the boxes.
The pure cotton fabric is stretchy, and the print is made with durable ink to last through multiple washes, so your little one can wear it everywhere you’d like to make a statement.
What’s the Best Material?
When choosing onesies, you want to choose a material that is suitable to the climate but also soft and comfortable, as your baby’s skin is sensitive.
We always recommend cotton for baby clothing. It absorbs moisture, keeping your little one dry. It’s also gentle on the skin and less likely to trigger any reaction.
If you can’t find pure cotton, look for a blend that includes polyester, spandex, or bamboo. These are also breathable and much easier to care for.
How Many Onesies Do I Need?
Babies spit up and have poop explosions, and don’t forget about spilled milk. We recommend starting with a minimum of four to seven pieces, although if you’re hoping to space your laundry days out a little, or if your little one tends to be extra messy, you may wish to extend that number.
Sizing Tips for Onesies
It’s impossible to predict how big your baby will be or how fast they will grow once they’ve arrived.
Below is a quick guide to the sometimes confusing world of baby sizes. Of course, the sizes are approximate and will vary, depending on the manufacturer and product.
- Newborn: Generally, this size fits babies weighing up to 7 pounds. If your ultrasound shows you might have a big baby, you’ll want to skip this size.
- 0-3 months: 7–12 pounds, up to about 23 inches. Some babies may even skip this size.
- 3-6 months: 12–17 pounds, up to 27 inches.
- 6-12 months: 17–22 pounds, up to 29 inches.
- 12-18 months: 22–27 pounds, up to 31 inches.
If you want to get newborn sizes before your baby arrives, choose three or four pieces only. Size 3-6 months is the best size to stock up on before birth. Once your baby is in your loving arms, decide for yourself when you need bigger sizes (1).
How to Wash Baby Onesies
Start by reading the label. We highly suggest checking this before purchasing to make sure the items don’t have any special wash requirements.
When changing your baby, you’ll need clean clothes fast, and who has time to care for a newborn and wash onesies by hand? Separate everything by color as you usually would, and use a mild, perfume-free detergent.