The Best Baby Onesies to Show off Those Chunky Baby Legs (2024)

Reviewed & Approved

Our best overall pick is Primary’s Short Sleeve Babysuit. Widely available, the onesie is affordable, made of organic cotton, pre-washed to prevent shrinkage, and available in seven sizes and a colorful array of 22 solid colors. For a classic white onesie, you can’t go wrong with Carter’s Newborn 5-Pack Cotton Short Sleeve Bodysuits, an affordable basic that’s perfect for stocking a dresser or decorating at a baby shower.

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Primary is known for classic basics available in a wide array of colors and this onesie is the perfect example. Choose between 22 colors that aren’t easily available anywhere else. The bright hues range includes everything under the rainbow, with enticing names like “raspberry,” “blueberry,” and “clover.” The colorful onesies are made from 100 percent organic cotton rib, which means the cotton fabric is naturally form-fitting and stretchy, so it’s ideal for a onesie that should fit snugly around the body. Since it’s made of organic cotton, it’s also free of chemicals that can irritate a baby’s delicate skin.

Available in seven sizes, the smallest is a newborn size, fitting babies up to 7 pounds. While there are no preemie sizes, this little onesie will fit most brand-new babies. The largest size is 18-24 months, so even older babies and young toddlers can get in the colorful onesie crew. Primary’s site has a helpful size chart that outlines the weight and height parameters for each size, making it a cinch to get a perfect fit.

Each onesie has a bottom snap closure with three easy snaps and the overlap shoulder tabs are helpful to dress your baby either way: top-down or bottom-up. We love that all of Primary’s clothes are gender-neutral. None of their clothes have logos, slogans, or any other gendered or baby-like images on them, which can be a refreshing change for parents who prefer a plain style. Whether you just love your kiddo dressing the rainbow or need a specific color for a look, family matching, or to coordinate with a particular bottom, Primary’s onesie is a sensible choice for any baby.

Price at time of publication: $10

^{Key Specs:
Sizing: Newborn through 18-24 months | How Many per Pack: 1 | Material: Organic cotton | Care Instructions: Machine wash}

Your little one can become their very own classic Gerber baby with this affordable multipack of white onesies made of 100 percent cotton. And if you’re planning a baby shower game or want to decorate your own onesies, these are ideal—they are machine washable and can withstand decorating with fabric or permanent markers.

Knowing that you’ll need to change tons of baby diapers, the three snap closures on these onesies are placed higher, in the front of the crotch. This makes for an easier time when you need to open and close the onesie since the snaps are more accessible. We also appreciate that the sizing on these goes from preemie through 24 months. The only drawback is that, without a handy size chart, it’s a bit of a guess to order the right size if your baby is larger or smaller than their age average.

Price at time of publication: $16

^{Key Specs:
Sizing: Preemie through 24 months | How Many per Pack: 8 | Material: 100% cotton | Care Instructions: Machine wash}

Dress your newborn in stand-out style with this five-pack of onesies from Old Navy. We appreciate that these come in five vibrant colors, are all gender-neutral, and don’t have any cutesy images or logos that can turn parents off. Made of 100 percent rib-knit cotton, the onesies are stretchy but maintain that snug fit.

A thicker neckline and ribbing around the legs means these will hold up through tons of washes. Three snaps are secured on the ribbing and placed higher up on the crotch, so you won’t be fumbling during diaper changes. We love that Old Navy’s size guide goes above and beyond. In addition to including height and weight, the size guide includes chest, waist, and hips/seat measurements, so if you’re unsure of sizing or have a baby that doesn’t quite fit standard measurements, this tool is very helpful.

Price at time of publication: $50

^{Key Specs:
Sizing: 0-3 months through 18-24 months | How Many per Pack: 5 | Material: 100% cotton | Care: Machine wash}

Made-to-order custom onesies are a thoughtful gift, a sweet way to announce a baby, or just a great addition to that dresser drawer. This Etsy seller makes it a cinch to create a custom onesie that can turn into a keepsake. Choose between short or long-sleeve styles and pick sizing from 0-3 months up to 18 months.

The words “Baby” are automatically included, so all you need to do is enter the name of your cutie and order the onesie. The seller notes these onesies run a bit small, so go ahead and size up if unsure of sizing. Since it’s a custom order, there are no returns on personalized goods. Keep in mind that the onesies only come in white and just one font is available.

Price at time of publication: $18

^{Key Specs:
Sizing: 0-3 months through 18 months | How Many per Pack: 1 | Material: 100% cotton | Care: Machine wash}

Parents of preemies may have trouble finding onesies that fit their little bundles of joy. Thanks to Monica + Andy, it’s easy to find adorable onesies in the smallest sizes, including preemie and newborn, through 18 months. According to the company’s helpful size chart, preemie sizing includes up to 5 pounds and up to 17 inches. These are only available with long sleeves, but that may be a benefit for little babies who need help retaining their body heat.

The onesies are designed in a range of darling basic prints and limited edition seasonal prints. While more expensive than some of the other options on our list, the company does run frequent sales, so it’s worth checking out if there’s a discount for your preferred look. The onesies in prints and solids are made of an organic cotton/spandex blend, while the heathered colors are made of 100 percent organic cotton. As with most onesies, these have shoulder tabs and crotch snaps for easy top-to-bottom access.

Price at time of publication: $20

^{Key Specs:
Sizing: Preemie through 12-18 months | How Many per Pack: 1 | Material: Prints and solids: 95% organic cotton and 5% spandex, heathered colors: 100% organic cotton | Care: Machine wash}

Long-sleeve onesies are a useful wardrobe staple for any baby. Whether you live in a cool climate, are moving in and out of air-conditioned spaces, or just want a little more coverage for your bundle of joy, it’s helpful to stock up on a variety of styles.

Sizing for these practical onesies ranges from preemie to 24 months. Like most classic onesies, these have flexible shoulder tabs for easy on-and-off and nickel-free snaps at the crotch. In both the preemie and infant sizes, the long sleeves have fold-over cuffs so you can cover your baby’s hands and prevent any unexpected scratches from those tiny fingernails.

Price at time of publication: $20

^{Key Specs:
Sizing: Preemie through 24 months | How Many per Pack: 7 | Material: 100% cotton | Care: Machine wash}

A side-snap, or wrap-style, onesie goes on differently than the typical over-the-head styles. To put one on, undo all the snaps and lay your baby on top of the onesie, snap the crotch (or put their leg through the leg holes if you’ve kept the crotch snaps closed), and then snap the three side snaps shut. Some parents prefer the side snap because it prevents any clothes from going over the head, while others may fumble with the extra snaps. Unlike some other wrap styles, this one doesn’t have a deep V-neck, so the baby’s chest stays fully covered all the way up to their tiny little chin.

It’s worth giving side snaps a try, and this three-pack is affordable and comes in a range of 19 colors. The sizing errs on the smaller side since these are available in preemie through 6-9 months only. All sizes except for the largest have handy fold-over cuffs that help avoid unnecessary scratches from those tiny baby nails.

Price at time of publication: $15-$30

^{Key Specs:
Sizing: Preemie through 6-9 months| How Many per Pack: 3 | Material: Organic cotton | Care: Machine wash}

Consider this five-pack of white onesies a wardrobe staple. Whether your baby wears an undershirt layer in cold weather, they’re used for a baby shower crafting activity, or you just need some classic basics to round out the layette, this affordable five-pack of cotton onesies will always come in handy. The bodysuits feature snaps at the crotch for easy diaper access and fold-over shoulder flaps for quick on-and-off.

Price at time of publication: $26

^{Key Specs:
Sizing: Newborn through 24 months | How Many per Pack: 5 | Material: Cotton | Care: Machine wash}

A great gift for any new baby, this 10-pack of rainbow onesies comes packaged in a lovely gift box that not only shows off the gorgeous array of colors but also has a handle for easy toting. It’s so cute, you may not even want to wrap this gift. We love that the 10-pack is affordable and the onesies are made of organic cotton. Each one has an easy-access envelope neck and nickel-free crotch snaps.

This set comes in sizes from preemie through 24 months, though sizes on the Honest website stop at 12 months. Four different “rainbow” varieties are available. Don’t be turned off by the names “Rainbow Girl” and “Rainbow Boy.” Each set has a wide range of colors and is unisex. Just pick the color packs you like and your baby will do their job of looking dreamy.

Price at time of publication: $40 to $50

^{Key Specs:
Sizing: Preemie through 24 months | How Many per Pack: 10 | Material: Organic cotton | Care: Machine wash}

An innovative “bottom-up” design, Tabeeze baby onesies are an inclusive alternative for babies with special needs or families that want an easy option for dressing their little cutie. Made from organic cotton, these onesies feature both standard crotch snaps and innovative shoulder snaps. The shoulder snaps mean you can easily pull the onesie up your baby’s body and avoid negotiating the baby’s head through the neck hole.

Tabeeze truly believes sharing is caring, too. If you have a baby in the NICU or one that requires medical equipment like NG tubes, IVs, catheters, or some specific medical gear, the company will send along a free six-pack of bottom-up onesies that will help make your life a tiny bit easier. A simple form on the company’s website starts the process to receive the onesies.

Price at time of publication: $20 (single)

^{Key Specs:
Sizing: Newborn through 6-9 months | How Many per Pack: 1, 3, 6, and 12 packs | Material: Organic cotton | Care: Machine wash}

Silky soft bamboo is a superb fabric choice for kiddos with sensitive skin. Made of a bamboo rayon/spandex blend, these onesies are silky smooth and stretchy. The material feels incredibly soft and will keep the most delicate baby skin comfortable and cozy. Naturally hypoallergenic, bamboo is breathable, so it’s perfect for both summer and winter wear.

While these onesies are on the pricier side, they are a bit less expensive on the Kyte Baby website, where you’ll also find more colors and patterns available. You’ll need to stock up to meet the $85 minimum for free shipping, but given how lovely these onesies are, that may not be hard. As a bonus, producing these bamboo onesies requires 30 percent less water than cotton onesies. Pricey, but worth it, these silky, soft, and stretchy onesies are a recommended addition to any baby’s layette.

Price at time of publication: $20

^{Key Specs:
Sizing: Preemie through 24 months | How Many per Pack: 1 | Material: Bamboo rayon/spandex blend | Care: Hand wash or machine wash separately with cold water, gentle cycle (no agitation if possible), and hang or lay flat to dry}

Winter weather can be chilly, gray, and unpredictable. Let your baby bring smiles with a precious one-piece covered in smiley faces. The bamboo/spandex blend fabric isn’t just buttery soft and hypoallergenic, but it’s also naturally breathable, so it provides a warm layer without the risk of overheating. If you’re planning any outdoor activities or want to bundle your cutie up, this breathable fabric makes a great base layer.

Available in a wide range of sizes, we love that there are fold-over mittens included in the 0-3 month size. Additionally, the two largest sizes don’t have footie coverings, which can be helpful for early walkers, but you’ll want to add socks or booties for winter wear. With this onesie, there’s no need for snaps—the whole thing zips right up and down, making for easy on and off. There’s no tab to cover the zipper pull at the neck, so just zip carefully as you get near your babe’s petite chin.

Price at time of publication: $35

^{Key Specs:
Sizing: 0-3 months through 18-24 months | How Many per Pack: 1 | Material: Bamboo/spandex blend | Care: Machine wash cold, tumble dry low}

Thanks to GAP Baby, it’s easy to stock up on this three-pack unisex set of baby onesies. GAP Baby has expanded its size range, so you can choose from the smallest size at “under 7 pounds” for preemies, up to the 18-24 month size. We love that the unisex patterns are printed on the front and back of the onesies. They’re lovely enough to show off on their own but neutral enough to be a winning layer to match with pants or a long-sleeve top.

Made of organic cotton, these machine-washable onesies feature helpful shoulder tabs and snaps at the crotch. While GAP Baby may be a bit more expensive than other options, you’ll pay for top-notch quality. Additionally, the brand offers frequent sales and discounts, so check back often for reduced pricing.

Price at time of publication: $35

^{Key Specs:
Sizing: Up to 7 lbs. through 18-24 months | How Many per Pack: 3 | Material: Organic cotton | Care: Machine wash}

Footed outfits are perfect for chilly weather or keeping delicate skin covered, and these darling onesies, made of super soft cotton, are a sweet pick. The affordable two-pack comes in a few print options and a choice of three closure types. Pick from a two-way zipper that zips from both the top and bottom, a standard single zipper, or snaps. On the zipper closures, there’s a helpful safety tab to protect your little one’s chin. The only drawback we can see is that the sizing stops at 6-9 months, so you’ll need to choose another option for older babies.

Price at time of publication: $16

^{Key Specs:
Sizing: Preemie through 6-9 months | How Many per Pack: 2 | Material: Cotton | Care: Machine wash}

Whether you prefer silly puns based on food, animals, or something else, this sweet five-pack of baby onesies is silly and sweet without being over the top, like some other options on the market. Made of organic cotton, the size options range from preemie through 18-24 months. While there are over 86 different pattern choices, they aren’t all available in every size. Speaking of different sizes, pricing also varies slightly based on sizing, so you might want to check a few patterns and sizing before you purchase. The onesies fit true to size and all have snap crotch closures and shoulder tabs for easy on-and-off access.

Price at time of publication: from $23

^{Key Specs:
Sizing: Preemie through 18-24 months | How Many per Pack: 5 | Material: Organic cotton | Care: Machine wash}

Super soft organic cotton makes this onesie five-pack a brilliant wardrobe staple for any baby. Attractive enough to wear alone but simple enough to be a layer under a warmer outfit, these onesies come in a range of patterns or basic white.

Like others on our list, these have a nickel-free snap closure at the crotch and stretchy shoulder tabs at the neck for easy on-and-off access. Do note, the sizing of these onesies only goes up to 12 months, so if you’ve got a bigger babe, you’ll need a different pack. Pricing also varies based on pattern and size, with a range from $13 to $27.

Price at time of publication: $13-$27

^{Key Specs:
Sizing: Preemie through 12 months | How Many per Pack: 5 | Material: Organic cotton | Care: Machine wash}

Winter babies (and their parents) will appreciate this cozy onesie that’s made of lightweight fleece. The long-sleeve footed onesie may seem like a diaper-changing challenge, but thanks to a two-way zipper, it’s much easier to dress, undress, or change your baby even when they’re wearing this soft fleece. We love that while it’s warm and cozy, the fleece isn’t super heavy, so it’s appropriate for wearing indoors, for a comfy winter sleep, or anytime your babe needs a little more cozy coverage.

Available in a few attractive, unisex patterns, this particular style only comes in sizing from preemie through 6-9 months, so if you’ve got a bigger babe, you’ll need to choose another fleece from Carter’s. Pricing also seems to vary based on pattern and sizing.

Price at time of publication: $14-$19

^{Key Specs:
Sizing: Preemie through 6-9 months | How Many per Pack: 2 | Material: Lightweight fleece | Care: Machine wash}

Celebrate the family addition of a sweet little lady with a dusty rose “Lil Sis” onesie. Made of soft cotton with text printed in the USA with child-safe ink, these onesies are available in a range of sizes from 0-3 months through 6-12 months. If you’ve welcomed a little dude into your family, Sweet Wink also makes a delightful version in an indigo blue with “Lil Bro” printed across the chest. To make it a sibling set, Sweet Wink also sells “Big Bro” or “Big Sis” T-shirts in the same color palettes. Those bigger shirts range in sizes from 2 through 7-8 years old, so you can create a full family look.

Price at time of publication: $27

^{Key Specs:
Sizing: 0-3 months through 6-12 months | How Many per Pack: 1 | Material: Cotton | Care: Machine wash}

Who needs a pot of gold at the end of the rainbow when you can have the rainbow all to yourself? Whether you need a delightful gift or just want to celebrate a color-loving baby, this darling set includes a baby bodysuit with three rainbows and matching pants. We’re grooving that the rainbows are a bit more artistic than others—they feature a painterly style and include nontypical colors, so they’re gender-neutral and not too cutesy. The envelope neckline and crotch snaps make it easy to get this long-sleeve onesie on and off, and the pants feature an elastic waist all around, so it’s a cinch to pull them on and off for diaper changes and bedtime. The only drawback is that the largest size is 6-9 months for this set, so if you’re planning on purchasing, it’ll only fit the little babes in your life.

Price at time of publication: $39

^{Key Specs:
Sizing: Newborn through 6-9 months | How Many per Pack: 1 | Material: Cotton | Care: Machine wash}

Your baby is one of a kind, so why not make a onesie that is also unique and special? This monogrammed choice from Southern Touch Monogram offers buyers so many custom options, but the price remains consistent no matter how you choose to customize your perfect little onesie. Starting with size, these are available in a range from newborn through 12-18 months—and a helpful size chart ensures the right fit (use it, since all sales are final).

Once you’ve determined the right size, choose from standard short or long sleeves or a ruffled short or long-sleeve option. Final decisions have to be made for your monogram—choose initials or names that can be embroidered in one of 40+ thread colors and 20+ fonts, making this a truly one-of-a-kind purchase. No matter the style, the onesies all have crotch snaps, but no envelope openings at the shoulders. Instead, these have a row of snaps down the back for easy access.

Price at time of publication: $17

^{Key Specs:
Sizing: Newborn through 12-18 months | How Many per Pack: 1 | Material: Cotton | Care: Machine wash}

Take some inspiration from the fairy tale “Goldilocks and the Three Bears” with these family bear T-shirt and onesie sets. Whether you want to use the cute tops to announce a pregnancy (mama bear, papa bear, and a baby bear onesie) or already have a growing family and want to look picture-perfect in a photo shoot, these T-shirts are a terrific option.

A fit for everyone, there’s a huge range of sizes from newborn onesies to 3XL adult T-shirts. Additionally, since you order each shirt individually, this set is inclusive and will work for whatever your family needs. The baby bear onesie features crotch snaps and shoulder flaps and is available from 0-3 months up to 18-24 months. The other sizes are all T-shirts and just as darling.

Price at time of publication: $17 to $21

^{Key Specs:
Sizing: 0-3 months through 3XL adult | How Many per Pack: 1 | Material: Cotton | Care: Machine wash}

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Frequently Asked Questions

• How many baby onesies do you need?

  This depends on your needs, budget, and ability to frequently do laundry. The more onesies you have, the less often you’ll need to wash and dry them. According to Rattner, “Some have little ones in onesies day and night, which is especially common for newborns, while others reserve them just for sleeping. If we’re talking about a newborn, you’re going to want six or more onesies to cover any accidents and extras to keep in the diaper bag.” This is where multipacks, like the Simple Joys by Carter’s onesies and the Burt’s Bees Organic Cotton Bodysuits come in handy.

• What size onesies should you buy for your baby?

  It’s hard to plan when you don’t know how big your baby will be. Aim to have at least six or seven onesies in size 0-3 months on hand before bringing the baby home. If you’ve delivered a preemie or an especially small baby, you can always get a few smaller options, but your baby will likely grow pretty quickly. Once the onesies get snug, it’s time to purchase the next size up.

• How do you fold baby onesies?

  There is no right or wrong way to fold a baby onesie. They are so small and don’t take up too much space, but hanging them may be overwhelming since you’ll need a lot of tiny hangers. Do what works for you! As an experienced parent, Ratner endorses any decision, so, “whether you go with rolled, folded, organized by color (I’ve been there), or stuffed into a drawer haphazardly (I’ve been there too!) [choose] whatever works for you and gets you through the newborn months, diaper changes, and bedtime!”

• How much do baby onesies cost?

  Baby onesies vary in price depending on the style, fabric, quality, and number of onesies per pack. Our most affordable pick, the Gerber Unisex 8-Pack, will cost you just under $16, which means each onesie will have a very budget-friendly price of $2. This lower end of the price range will get you a basic white onesie that can be worn on its own or as a bottom layer to keep your baby warm. The cotton on these onesies is on the thinner side, but that also makes them stretchy and quite comfortable. A similar option, the Honest Baby 10-Pack of Organic Cotton Bodysuits, has a price tag between $40 and $50 depending on size and color, so the individual cost of each onesie can be as low as $4.

  On the higher end of the price range you’ll find more delicate fabrics, thoughtful designs, and personalized options like the Southern Touch Monogram Onesie for $17, the Tea Collection Painted Rainbow Onesie Set (which includes artfully decorated pants) for $39, and the Sweet Wink Lil Sis Onesie for $27.

  When shopping for onesies for your bundle of joy, choose what works best for your budget and needs. While the onesie phase is lovable, kids grow very quickly, so unless it’s for a special occasion, it may not be worth spending a ton of money on baby onesies.

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