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Buying formal or holiday clothing for babies and toddlers might seem silly, but they deserve an outfit and you deserve a great picture. That being said, any formal wear can be hard to come by in that size range, might be expensive, and knowing they will only wear it once or twice, and that can be difficult to stomach as well.
However, there is a solution and it falls within these adorable onesie suits we found on Amazon. These outfits are all onesie-based so you don’t have to buy extra pieces or worry about anything getting lost as well. These one-pieces are all tuxedos and tuxedo-type suits that you simply pull over the head, button at the crotch, and go.
These outfits work for any and all holidays and weddings and make great baby shower gifts. Choose from some fun short onesies that have simple tuxedo graphics for your warmer events, or long-sleeved ones with a pant leg, vest, and bowtie for the ultimate in cuteness. Here are our favorite onesie suits of 2024!
Detailing the Leading Onesie Suits in 2024
ZOEREA Tuxedo Onesie — Best Overall
Zoerea’s tuxedo baby boy romper is made from super-soft cotton and might be one of the cutest toddler outfits you have ever seen. Ideal for babies and toddlers sized 3-18 months, this tuxedo has long sleeves and is a full one-piece complete with a bowtie, lapels, and cumberbund. This onesie is great for any formal or informal events including weddings, church, family photos, and birthdays, and easily slips on and off with snap buttons around the leg area.
Pros
- For its price point, it’s a good suit for any formal occasion
Cons
- Consult the size chart prior to buying
HMD Tuxedo Onesie — 100% Cotton
HMD’s tuxedo onesie and jumper are made from 100% organic cotton making them soft against your baby’s skin. The tuxedo-style design has an attached bow tie, an attached vest that unbuttons, and the shirt underneath comes with snaps that button and unbutton. If you choose the option with suspenders, they are also removable and adjustable and take this onesie to the next level.
Pros
- This suit can be worn year-round
Cons
- This onesie has no stretch
A&J DESIGN Tuxedo Onesie — Best for Play
For a less formal occasion or even a fun Halloween costume, this tuxedo onesie is a simple, pull-over made from 100% cotton. This short one-piece is embroidered to resemble an authentic tuxedo with a bowtie and a black and white design. This suit is breathable, perfect for indoor and outdoor play, and can work for any occasion including birthdays and holidays.
Pros
- You have the option of a black or red bowtie
Cons
- Hand washing is preferred for a longer life span
Kimocat Tuxedo Jumpsuit — Most Comfortable
Kimocat’s romper tuxedo is a long-sleeved pant onesie made from 100% breathable cotton. Ideal for birthday parties, Easter, a wedding, or as a baby shower gift, this tuxedo-style suit will have your child turning heads wherever you go. This onesie also has buttons at the bottom for fast and easy changing and the bowtie is detached slightly at the sides for a more realistic look and feel.
Pros
- This onesie comes in a variety of useful color options
Cons
- Refer to the size chart prior to purchase
The Tiny Universe Tuxedo Onesie — Machine Washable
The tuxedo onesie by The Tiny Universe is another long-sleeve, one-piece perfect for any special occasion. This onesie is made from eco-friendly, soft cotton and has sturdy snap buttons on each shoulder and leg area that make for easy diaper and clothing changes. The onesie is also truly a one-piece with the tuxedo print flush to the material so nothing is hanging that can be pulled, tugged, and torn off and it is machine washable for easy care.
Pros
- The label has been placed in the back at the outside of the garment to ensure it won’t chafe the skin
Cons
- This onesie is at a slightly higher price point than our other options
Funny Baby Tuxedo One-Piece Bodysuit — Most Durable
Keep it fun and formal with The Funny Baby tuxedo one-piece. This short onesie is another option similar to the one mentioned above that works for formal and nonformal occasions alike. This onesie has a cute sewn-on applique and embroidery design, resembling a tuxedo, and is made from thick cotton for comfort and softness. A wide neckline and snap button closure allow for easy dressing and double-stitched hems to keep it sturdy after multiple washes.
Pros
- Sizes range from infant to toddler
Cons
- This may run slightly large for sizing
Buying Guide: How to Buy a Top-Rated Onesie Suit
Suits are the undisputed kings of men's formal fashion. There is a reason why the core design of suits has remained the same for centuries now. So, every man should own at least one good-looking suit. But what about your toddler?
Mini Suits
You can definitely find proper mini suits that are designed with toddlers and little children in mind. However, these might look great in product photos, but they are not a practical option. For starters, getting all those individual pieces on your baby and it all staying in its place is nearly impossible. Secondly, these mini suits cost way too much for something that your toddler will only be able to wear a handful of times before growing out of it.
Onesie Suits
Luckily, there is an ingenious solution already present for this issue; the onesie suit. These clever clothes will allow you to dress your toddler like a sophisticated gentleman without it being a massive hassle or overly expensive.
Buying the Right Onesie Suit
Onesie suits are great as a whole. However, not every one of them is equally high quality. There are many available options with amazing materials, quality construction, and precise designs. But, there are also just as many mass-produced onesie suits from no-name manufacturers with lackluster stitching, inconsistent designs, and worst of all, terrible materials.
Thankfully, sifting through these options to find the best ones is not that difficult if you know what you're looking for. These are the handful of factors you have to consider when picking a onesie suit for your toddler.
Material
The material of the onesie suit is arguably the most important part of it. A onesie made out of rough fabric can cause discomfort to your baby and lead to skin rashes. Luckily, most of the famous options are made from quality soft materials that are perfectly safe for a toddler's sensitive skin.
Which material is best?
There are so many different materials used for these onesie suits, each with a unique blend of materials like nylon, cotton, wool, spandex, bamboo, etc. So, giving a recommendation for one particular material is not really practical. But, how can you tell if the material of a onesie suit is suitable for a baby or not?
Research the material
One way to learn about the material of a onesie suit is to just google its main ingredient and look through its properties. This will give you a pretty good idea of how the fabric feels and whether it's safe for your toddler. The other method is to look through customer reviews on that particular onesie suit and read reviews about the material. This will give you insight into how the suit is holding up after a few washes and whether it became softer after the washes or harsher.
Don't trust the manufacturer
If the manufacturer does not list any particular fabric and just says that it is a "soft" material, it is best to avoid that option. Sure, the manufacturer could be telling the truth. But there is a bigger chance that onesie material is sub-par at best.
Size
The size of the onesie suit is just behind the material in terms of importance. You might even have to spend more time looking for the right size than you spent finding the right material. A onesie suit that is too tight will put pressure on the baby's sensitive skin and can cause mild suffocation. On the other hand, a onesie suit that is too large will look mega awkward. Sure, your baby will grow in it soon. But what is the point of spending money on a onesie suit that your baby will wear a year from now?
How to find the right size?
Sizing a continuously growing toddler is more difficult than you might initially think. Things get even tougher when you realize that there is no universal standard for baby sizes. Thankfully, most quality manufacturers provide their own sizing chart and their own definitions of what small, medium, and large mean for their onesie suits.
So to get started, measure the length of the baby from shoulder to toes, the length of his sleeves, and the circumference of his chest. Noting down the weight of the baby isn't a bad idea either, as some manufacturers integrate it into their sizing chart. Now just compare these measurements to the manufacturer's charts, and you will find a right-sized onesie suit for your toddler in no time.
Design
The design of the onesie suit comes down to your personal preference and what will look good on your baby. There are no specific guidelines you have to follow. However, it is still recommended to leave this choice to the last. Pick the right material and size before you go looking for the right design. This way, any onesie suit you end up liking will be the perfect match for your baby by default.
One thing that you should keep in mind is to look for a onesie suit with physical elements. Onesie suits with printed designs look okay from afar but don't hold up well from up close. On the other hand, onesie suits with physical ties and jackets front stitched to them look fantastic from any distance and angle. These might cost a bit more than the printed onesies, but they are completely worth your hard-earned money.