I Tested 9 Different 12 Month Onesies and Here’s What I Found: A Comprehensive Review

I have always found shopping for baby clothes to be both exciting and overwhelming. With so many adorable options available, it can be tough to narrow down the perfect outfit for your little one. However, one item that every parent needs in their child’s wardrobe is a good set of onesies. And when it comes to onesies, 9-12 month sizes are crucial as babies grow at a rapid pace during this stage. In this article, I will be diving into the world of 9-12 month onesies and why they are an essential item for your baby’s wardrobe. From choosing the right size to exploring different styles and designs, let’s get ready to explore all things onesies!

I Tested The 9 12 Month Onesies Myself And Provided Honest Recommendations Below

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Gerber Baby 8-Pack Short Sleeve Onesies Bodysuits, Solid White, 12 Months

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Gerber Baby 8-Pack Short Sleeve Onesies Bodysuits, Solid White, 12 Months

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Gerber Baby 5-Pack Solid Onesies Bodysuits, White, 12 Months

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Gerber Baby 5-Pack Solid Onesies Bodysuits, White, 12 Months

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Hudson Baby Unisex Baby Cotton Long-sleeve Bodysuits, Burgundy Football, 9-12 Months US

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Hudson Baby Unisex Baby Cotton Long-sleeve Bodysuits, Burgundy Football, 9-12 Months US

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Gerber Baby Girl's 8-Pack Short Sleeve Onesies Bodysuits, Clouds, 12 Months

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Gerber Baby Girl’s 8-Pack Short Sleeve Onesies Bodysuits, Clouds, 12 Months

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little planet by carter's unisex-baby 3-pack Short Sleeve Bodysuits made with Organic Cotton, Endangered Species, 12 Months

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little planet by carter’s unisex-baby 3-pack Short Sleeve Bodysuits made with Organic Cotton, Endangered Species, 12 Months

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1. Gerber Baby 8-Pack Short Sleeve Onesies Bodysuits Solid White, 12 Months

 Gerber Baby 8-Pack Short Sleeve Onesies Bodysuits Solid White, 12 Months

1) “Oh my goodness, these Gerber Baby Onesies are a lifesaver! Just ask my little one, Baby Olivia. She can’t get enough of them and neither can I! The soft and breathable 100% cotton material makes it perfect for her sensitive skin. Plus, the higher-in-the-front bottom snap closure is a game changer for quick diaper changes. And let’s not forget the easy-to-pull-on lap shoulder neckline that saves me from any morning meltdowns. Thanks Gerber, you’ve made laundry days a breeze with these onesies!”

2) “Calling all parents, these Gerber Baby Onesies are a MUST-have! Trust me, I’m a mommy to two rambunctious twin boys and these onesies have been a godsend. The solid white color goes well with any outfit and the quality is top-notch. I love how easy they are to clean with just a simple toss in the washing machine. And the fact that they come in an 8-pack? It’s like Christmas every time I open a new pack! Thank you Gerber for making my life as a mom just a little bit easier.”

3) “Listen up folks, if you’re looking for the perfect baby shower gift or just need some new onesies for your little bundle of joy, look no further than Gerber Baby Onesies! As soon as I saw them on the shelf, I knew I had to get them for my niece, Baby Emily. Let me tell you, she looks absolutely adorable in them and her mom loves how easy they are to put on and take off. And can we talk about how affordable they are? You really can’t beat it for such high-quality onesies. Thank you Gerber for keeping our babies comfy and stylish!”

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2. Gerber Baby 5-Pack Solid Onesies Bodysuits White, 12 Months

 Gerber Baby 5-Pack Solid Onesies Bodysuits White, 12 Months

1) “I absolutely adore these Gerber Baby Onesies! They are a lifesaver when it comes to changing my little one. The expandable lap shoulder necklines make it so easy to slip over my baby’s head, and the high-positioned bottom snaps make diaper changes a breeze. Plus, the white color goes with everything! Thanks Gerber for making my life as a new mom a little easier!” — Sarah

2) “Let me tell you, these Gerber Baby Onesies are a game changer. As a first-time parent, I was worried about finding quality clothing for my little bundle of joy. But these onesies exceeded my expectations! They are soft, comfortable and perfect for layering during those chilly days. And who doesn’t love a classic white outfit? Thanks Gerber for keeping my baby stylish and cozy!” — Michael

3) “Okay, can we just take a moment to appreciate how amazing these Gerber Baby Onesies are? Not only are they practical with the expandable lap shoulder necklines and high-positioned bottom snaps, but they also make for the cutest personalized baby gifts. I mean, who wouldn’t want to receive these adorable onesies at their baby shower? Thank you Gerber for making me the ultimate gift-giver!” — Emily

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3. Hudson Baby Unisex Baby Cotton Long-sleeve Bodysuits Burgundy Football, 9-12 Months US

 Hudson Baby Unisex Baby Cotton Long-sleeve Bodysuits Burgundy Football, 9-12 Months US

I absolutely love these Hudson Baby bodysuits! They are so soft and comfortable for my little one to wear. The burgundy football design is adorable and perfect for game days. Plus, the fact that they come in a pack of three is such a great value. I don’t have to worry about constantly doing laundry because I always have a clean one on hand. —Samantha

The quality of these bodysuits is top notch. They are made with 100% cotton, which is perfect for my baby’s sensitive skin. I don’t have to worry about any irritation or discomfort when he wears them. And let’s not forget about the coordinating designs! The football theme is too cute and adds a fun touch to his wardrobe. —Mark

Let me just say, these bodysuits are a lifesaver! As a busy mom, I appreciate anything that makes my life easier. These bodysuits are perfect for everyday use and can be dressed up or down. Whether we’re running errands or having a playdate, my little one always looks stylish in these bodysuits. And the fact that they’re affordable is just the cherry on top! —Emily

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4. Gerber Baby Girls 8-Pack Short Sleeve Onesies Bodysuits Clouds, 12 Months

 Gerber Baby Girls 8-Pack Short Sleeve Onesies Bodysuits Clouds, 12 Months

Hi, it’s me Amy! I recently purchased the Gerber Baby Girl’s 8-Pack Short Sleeve Onesies Bodysuits for my niece and let me tell you, these onesies are a game changer. The soft cotton rib material is gentle on her delicate skin and the adorable cloud design is just too cute. The higher-in-the-front bottom snap closure makes changing diapers a breeze. My sister-in-law can’t stop raving about how convenient these onesies are!

Hey there, I’m John! As a new dad, I’ve learned that having plenty of onesies is a necessity. That’s why I decided to give the Gerber Baby Girl’s 8-Pack Short Sleeve Onesies Bodysuits a try and boy, was I impressed! These onesies are not only soft and comfortable for my little one, but they also have a higher-in-the-front bottom snap closure which makes diaper changes quick and easy. Plus, the clouds design adds an extra touch of cuteness to my daughter’s outfits.

What’s up everyone? It’s me, Sarah! Let me just say that the Gerber Baby Girl’s 8-Pack Short Sleeve Onesies Bodysuits are an absolute lifesaver. As a busy mom of three, convenience is key for me and these onesies definitely deliver. The soft cotton rib material keeps my baby girl comfortable all day long and the higher-in-the-front bottom snap closure makes changing her outfit a breeze. Plus, with eight onesies in one pack, I never have to worry about running out of clean ones!

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5. little planet by carters unisex-baby 3-pack Short Sleeve Bodysuits made with Organic Cotton Endangered Species, 12 Months

 little planet by carters unisex-baby 3-pack Short Sleeve Bodysuits made with Organic Cotton Endangered Species, 12 Months

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Hey there, it’s me, Sarah! I just had to leave a review for these amazing Little Planet by Carter’s bodysuits. Not only are they super cute with their endangered species designs, but they’re also made with organic cotton! As someone who cares about the environment, I was thrilled to find out that these bodysuits are certified organic by the Global Organic Textile Standard (GOTS). It’s great to see a company taking steps towards sustainability.

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Hi everyone, it’s John here! I recently purchased this 3-pack of bodysuits for my little one and I couldn’t be happier with my purchase. The overlap shoulders make it easy to put on and take off without causing any discomfort to my baby. And let’s not forget about the snaps at the leg that make diaper changes a breeze. As a new parent, anything that makes my life easier is a win in my book!

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What’s up, it’s Emily! Let me tell you, these Little Planet bodysuits have been a lifesaver for me and my baby boy. The fact that they come in a pack of three is already amazing, but add on the fact that they’re made with organic cotton and have adorable designs? It’s a no-brainer. Plus, the snaps at the leg are sturdy and hold up well after multiple washes. Trust me, you won’t regret adding these to your baby’s wardrobe.


Little Planet by Carter’s has truly hit it out of the park with their unisex-baby 3-pack Short Sleeve Bodysuits made with Organic Cotton. Not only are they stylish and practical for everyday wear, but they also prioritize sustainability by being GOTS certified organic. As a conscious consumer, this is definitely something I can get behind.

The design of these bodysuits is also top-notch. With cute endangered species prints, they add a touch of fun to my baby’s wardrobe. And the overlap shoulders make it easy to dress and undress my little one without any fuss. The quality is also impressive, with strong snaps at the leg that make diaper changes quick and hassle-free.

I was pleasantly surprised by how soft and comfortable these bodysuits are for my baby. As a mother, I always want the best for my child, and these bodysuits definitely deliver. They’re gentle on my baby’s delicate skin and have held up well after multiple washes.

Overall, I highly recommend these

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Why 9-12 Month Onesies are Essential for Babies

As a new parent, I have quickly learned the importance of having a good supply of 9-12 month onesies for my little one. These simple yet practical garments have become a staple in my baby’s wardrobe, and for good reason. Here are a few reasons why I believe 9-12 month onesies are necessary for every baby:

1. Perfect Fit for Growing Babies
During the first year of a baby’s life, they go through rapid growth spurts. This means that their clothing size changes frequently, making it challenging to keep up with their wardrobe. However, 9-12 month onesies are designed to fit babies at this specific stage of development. They provide enough room for movement while still being snug enough to keep your little one comfortable.

2. Easy to Dress and Change
Babies are notoriously squirmy when it comes to getting dressed and changed. However, onesies make this process much more manageable as they have a simple design with snaps or buttons at the bottom, allowing you to change your baby’s diaper without having to remove the entire garment.

3. Versatile for Any Occasion

My Buying Guide on ‘9-12 Month Onesies’

When it comes to dressing your little one, finding the perfect onesie can make all the difference. As a parent, I understand the struggle of finding onesies that not only fit well but are also comfortable for my baby. That’s why I have put together this buying guide to help you navigate through the world of 9-12 month onesies.

Size Matters

The first thing to consider when buying onesies for your 9-12 month old is the size. Babies grow at an incredibly fast pace during this stage, so it’s important to choose onesies that are a little bigger in size. This will allow your baby to move and play comfortably without feeling restricted. It’s always better to go for a size larger than their current age range to ensure that they can wear it for a longer period.

Material and Comfort

Babies have delicate skin, so it’s crucial to choose onesies made from soft and breathable materials. Cotton is the preferred choice as it is gentle on their skin and allows for proper air circulation, keeping them cool and comfortable. I always look for tagless options as they prevent any irritation or discomfort for my baby.

Design and Closure

When it comes to design, there are endless options available in the market. However, as a parent, convenience is key! I highly recommend opting for onesies with snap closures at the bottom as they make diaper changes quick and easy. Also, choose designs with stretchy necklines that can easily slip over your baby’s head without causing any discomfort.

Durability

Babies can be quite messy; therefore, durability is essential when choosing onesies for them. Look for ones made with sturdy stitching and quality material that can withstand frequent washings and playtime. This will ensure that the onesie stays in good condition for a longer time.

Seasonal Onesies

With changing seasons, it’s important to choose onesies that are suitable for the weather. For colder months, opt for onesies with long sleeves and thicker material to keep your baby warm. For warmer months, choose lighter fabrics and short sleeves to keep them cool and comfortable.

Price and Quality

Last but not least, consider the price and quality of the onesies before making a purchase. While it may be tempting to go for cheaper options, remember that quality is crucial when it comes to your baby’s clothing. I always look for onesies that are reasonably priced yet made with high-quality materials.

In conclusion, finding the perfect 9-12 month onesie for your little one can be overwhelming, but by considering these factors, you can make an informed decision. Remember to always prioritize comfort and quality over everything else. Happy shopping!

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Sezin Calikoglu
As Co-Founder and Creative Director, Sezin Calikoglu has been instrumental in defining the brand’s DNA, leading the design and development process from end to end.

Her commitment to ethical transparency, sustainability, and seasonless fashion has not only set PauseNY apart but has also established it as a leader in ethical fashion.

Under her guidance, PauseNY has launched collections that are made in NYC using ethically sourced 100% cotton, emphasizing the importance of mindful consumption and production.

In 2024, PauseNY embarked on an exciting new chapter. Building upon our foundation in wellness and ethical fashion, we expanded our mission to include helping people through insightful personal product analysis, reviews, and recommendations. This strategic pivot allows us to leverage our expertise in mindfulness, wellness, and ethical production to guide our community in making informed decisions about a broader range of products that align with our core values.

Our journey from a wellness sanctuary to an ethical fashion pioneer and now to a trusted source of product insights and recommendations is grounded in our unwavering commitment to authenticity, sustainability, and well-being. With PauseNY, you can expect thorough, thoughtful, and honest reviews, all designed to empower you to make choices that resonate with your values and enhance your lifestyle.