Buyer’s guide for baby onesies (2024)

As a new parent, there are all sorts of essential baby items you need to ensure your little one is happy and comfortable. Onesies should definitely be one of these things - they are comfortable and easy to wear, plus they make a great base layer. But where to start when it comes to onesie shopping?

What is a onesie?

A onesie, sometimes also called a bodysuit, is a garment that fits over the baby’s diaper (usually fastened with poppers, buttons, or other similar mechanisms). Onesies are typically loose-fitting and comfortable for the baby to wear

What is a babygrow?

A babygrow, also known as a sleepsuit or babygro, is an all-in-one outfit with feet - so you don’t need socks. Many babygrows also feature scratch mitts that are built in to the sleeves so you can easily fold them over your little one’s hands.

What is a romper?

A romper is a one-piece outfit that comes with open hands and feet. Some designs don’t feature sleeves or legs, which makes them a great outfit choice in warmer weather.

1. Snap onesies

Many parents consider onesies that feature snaps to be the most convenient as they allow for fast and easy changing.

2. Zipper onesies

As the name suggests, these onesies feature zipper-type closures. Zipper onesies are great for babies as they cannot easily wiggle out of them.

3. Sleeveless onesies

These are the most practical and comfortable choices for babies in the summer.

4. Footed onesies

These onesies are ideal for wear in cold weather as they provide adequate coverage for the feet.

5. Footless onesies

If you want your baby to wear socks, sandals, or shoes, opt to go for footless onesies.

6. Plain onesies

Newborns need a frequent change of clothes as they poop, pee, and throw up quite often. Plain and muted colors are relatively long-lasting and easy to wash. If you’re shopping for a newborn, consider buying a couple of plain onesies.

7. Graphic onesies

Graphic onesies typically have fun characters or funny quotes and sayings printed on them. They make for trendy additions to your little one’s onesie collection. You can purchase them for special occasions, or you can buy customized versions if the seller provides the option.

8. Hood onesies

Looking for something cozy or stylish for your little one? Try a hood onesie, which not only looks cute but can also be quite handy if it's chilly.

There are many reasons why onesies are an essential addition to your baby’s wardrobe, including:

  • They are great to have up to the first year or so of your baby’s life. Onesies come in a wide array of sizes from newborn up to toddler.
  • Having several onesies on hand can get you through the messiness that comes with having a baby. As a new parent, you’ll find that you have to change your baby’s clothing at least three times a day. Onesies are easy to wash and are usually affordable to buy.
  • They are a reliable gift to give at a baby shower or as a birthday gift for a baby.
  • Baby onesies come in handy for both hot and cold weather. In cold weather, they can serve as a base layer to provide insulation. In warmer months, they can be worn by themselves as they are light and breathable.
  • Onesies fit perfectly over a diaper. Furthermore, they typically feature fastening mechanisms that can open easily near the bottom to allow for quick changes.
  • Baby onesies are gender-neutral articles of clothing. You can reuse onesies for your next baby regardless of their gender.
  • Baby onesies are one of the most versatile items of clothing - you can pair them with shorts, skirts, and pants.

1. Size

Buying an adorable onesie for your little one only to find that it's too small is a disappointment many parents know all too well. Make sure you buy clothes that fit your baby right. The appropriate size will not only be comfortable but will also allow your little nugget to move with ease.

Keep in mind that babies grow at a shockingly fast rate, so it is important to consider growth rate when buying onesies. Most baby clothes have standard measures to guide you if you’re having a hard time finding the right fit for your baby. That said, these measurements are general guidelines and you’ll often find that babies fall in between sizes (for example, their weight falls in the 6-9 months category while their height is in the 3-6 months category).

If you’re still indecisive about the size, your best bet is to go for the bigger size to compensate for growth spurts.

2. Material

When your cute little bundle of joy arrives, one of your first reactions might be to dress him/her in funky, trendy, and sometimes costly onesies in an effort to complement all the cuteness overload. However, there are cases when such outfits cause babies to get skin irritation such as rashes.

Babies (especially newborns) have highly sensitive skin. Therefore, when buying onesies, consider choosing designs made from 100% cotton. Alternatively, you can also go for soy-based fabrics such as azlon, and rayon from bamboo. Steer clear of onesies made from materials like polyester and nylon as they may cause discomfort and irritation due to their inability to regulate a baby’s temperature and take up moisture.

3. Functionality

Another factor to consider when buying baby onesies is functionality. Newborns don’t need fancy, over-the-top clothes since they spend most of the day sleeping, and comfort is the more important priority. That’s why you should go for something comfortable, like a kimono bodysuit or baby footies. You’ll also want to choose onesies that have well-fitting onesies - they should neither be too loose or tight to be worn. It’s also advisable to buy onesies with an elastic neckline as fixed ones can increase the risk of strangulation.

4. Season

When shopping for onesies, consider the season as well as the geographical climate you’re in. Always think ahead and do your best to buy season-appropriate clothing. If you’re buying onesies in January, you might want to look for designs that are suitable for spring as you would only get around 2-3 months out of winter clothes. Also, consider your geographic location - a onesie that a baby wears in New York City will be different from what one wears in Southern California.

When shopping for your baby, you’ll find that you have a wide array of options when it comes to onesies. By doing your research, you can ensure that you buy the right ones for your little one.

Buyer’s guide for baby onesies (2024)

FAQs

What is the rule of thumb for buying Baby Clothes? ›

Size up As a rule of thumb, it's best to buy big. Your baby will grow quicker than you think and you can always roll up sleeves or pants on too-big items and let your baby grow into them over time. Who knows… you may find that an item that is at first too-big fits just right after a run through the wash.

How many of each size onesie do I need? ›

How many onesies do I need? On the low end, you're going to want to have at least 6 onesies in each size throughout baby's first year. The same is true for bodysuits and footed pajamas. Don't plan too far out in the realm of more seasonal items because you can't predict baby's growth.

What are the guidelines for selecting infant clothes? ›

Clothes should be comfortable, soft and easy to take care of. Stretchy jumpsuits that fasten at the front are best, as well as tops with envelope necks, which are easier to get over your baby's head. Jumpsuits with zips can make dressing your baby quick and easy too. Clothes made from cotton are a good choice.

What's the most important thing of buying Baby Clothes? ›

6 Most Important Factors to Consider When Buying Baby Clothes
  • Fabric. Imagine a cute little baby has joined your family. ...
  • Safety. When buying baby clothes, safety is essential and sometimes overlooked by busy parents and families. ...
  • Size. ...
  • Style & Functionality. ...
  • Cost. ...
  • Season.
Oct 10, 2019

How much does the average parent spend on baby clothes? ›

Cost: $20 to $50 (or more) per month on average, depending on where (and how often) you shop. Throughout the first twelve months, babies outgrow clothing very quickly, so you'll be buying more clothes in infancy than when they're older.

How many bodysuits does a newborn need? ›

What your new baby needs: 6-8 bodysuits or vests – for babies born in spring, autumn and winter these are usually worn under a sleepsuit (or a little outfit). They are like little T-shirts that fasten with poppers between the legs. In summer these can be worn on their own.

What does 100 mean in baby clothes? ›

A European size 100 is about a 3T (and up to 4T) in the U.S. It'll likely fit a toddler weighing between 31 and 38 pounds, or up to a height up to around 40 inches. Cracking the baby clothing sizes code can be tricky. A good rule of thumb: When in doubt, size up.

What size onesies should you put on your registry? ›

Onesies & Rompers

You'll be fine if you include: 7 short-sleeved rompers (2 of which can be the newborn size) 4-7 long-sleeved onesies, depending on season and climate. ( 2 -3 of which can be the newborn size)

What are 4 guidelines for choosing children's clothing? ›

Clothing should fit your child comfortably and allow them to move freely. Avoid Clothing that is too tight or too loose , as this can be uncomfortable and unsafe . Choose clothing with simple designs & avoid clothing with small embellishments, as these can come off and pose a choking hazard .

How many outfits do you really need for a newborn? ›

0-3 Months Clothing Size

Stick to the two outfits a day rule, making sure you have at least 14 different options to experiment with. Onesies and rompers are still excellent choices here. You'll also need to think about the seasons.

How many weeks should you start buying baby clothes? ›

Nowadays, there are so many amazing options for baby gear that it can be tough to decide what to buy. However, many parents agree that it's best to wait to purchase certain items until you know your baby's sex, which you'll know between 18 and 21 weeks.

What is the first baby item you should buy? ›

Crib and crib mattress: You can put your baby in a crib from day one, though Montell says, “a lot of parents start with a bassinet in their room, then move their baby to crib.” Even so, you'll likely want to move your baby into a full-sized crib eventually, so it's helpful to buy one, as well as a reliable crib ...

What should be considered before buying 12 month baby girl onesies? ›

6 Things to Consider Before Buying Baby Clothes
  • Buy Small Amounts. Many new parents over evaluate the number of clothes their baby will need. ...
  • Baby Clothes as Gifts. ...
  • One Size Ahead of Baby Actual Age. ...
  • Purchase Wholesale. ...
  • Shop Smart and Wait for Sales. ...
  • Skip Designer Baby Clothes.

What do parents look for in baby clothes? ›

Just keep in mind some fundamental guidelines: priorities comfort with soft, breathable fabrics and irritation-free designs; priorities safety by choosing secure closures and chemical-free materials; choose usable clothing that makes changing diapers easier and adapts to changing weather conditions; choose well-fitting ...

Is 6 month clothes 3-6 or 6 9? ›

Many parents will tell you (after experiencing this first-hand) a good rule of thumb is that the size on the label is often the max size. For example, size 3 months often means that it fits babies up to 3 months of age. Most 6-month-old babies wear 9- or 12-month-size clothing.

What is the rule of clothes for babies? ›

A good rule of thumb is to give your baby 1 extra layer of clothing than what you're wearing. For example, if you're in a t-shirt and jumper, dress them in a vest, sleepsuit and cardigan or jumper. If you feel chilly, your baby probably does too.

Is 2T the same as 24 months? ›

Fit Differences

The 2T size won't have the extra room, appearing slimmer and feeling snugger than size 24 months. 2T pants usually feature straighter lines than 24-month pants or joggers, giving them a distinct “big kid” style.

Is 6 months the same as 3 and 6? ›

“My personal rule is considering that the tag means 'up to. ' So if a label says '3 months,' I think of it being about it being able to fit somewhere between 0-3 months, or if it says '6 months,' it can fit somewhere between 3-6 months.”

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