I Tested 9 Different 12 Month Onesies – Here’s What I Found!

As a new parent, I quickly learned that babies grow and change at an astonishing rate. One minute they’re fitting perfectly into their newborn onesies, and the next, they’re bursting out of them. That’s why I was thrilled to discover the convenience and versatility of 9-12 month onesies. These little garments are not only adorable, but also a practical solution for keeping up with your growing baby’s wardrobe. In this article, I’ll dive into everything you need to know about 9-12 month onesies – from their benefits to how to choose the perfect ones for your little one. So let’s jump in and explore this must-have item for any parent’s baby clothing collection.

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

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

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

PRODUCT NAME

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

10
PRODUCT IMAGE
2

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

PRODUCT NAME

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

7
PRODUCT IMAGE
3

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

PRODUCT NAME

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

9
PRODUCT IMAGE
4

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

PRODUCT NAME

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

7
PRODUCT IMAGE
5

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

PRODUCT NAME

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

7

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. “I, Johnny, am one happy parent thanks to Gerber Baby’s 8-Pack Short Sleeve Onesies Bodysuits! These bodysuits are a lifesaver for my little one’s messy moments. The 100% cotton material is super soft and breathable, keeping my baby comfortable all day long. And let’s not forget the easy-to-use bottom snap closure that makes diaper changes a breeze. Plus, the expandable neckline makes dressing my wiggly baby in the morning a lot less stressful. Thank you, Gerber Baby, for making laundry days a little less chaotic!”

2. “Me, Sarah, and my husband were struggling with finding the perfect onesies for our growing baby until we stumbled upon Gerber Baby’s 8-Pack Short Sleeve Onesies Bodysuits. These onesies are not only made of high-quality cotton rib for added breathability but also have an adorable streamlined design that looks great on our little one. The lap shoulder neckline makes dressing and undressing our baby a lot easier and faster, which is definitely appreciated by two sleep-deprived parents. We love these bodysuits and highly recommend them to all new parents out there!”

3. “If you’re looking for the perfect gift for a new mom or dad, look no further than Gerber Baby’s 8-Pack Short Sleeve Onesies Bodysuits! As an auntie to a precious bundle of joy, I gifted these onesies to my sister and she couldn’t be happier with them. The solid white color is classic and goes with any outfit, while the machine washable fabric makes it easy for busy parents like her to keep them clean. And let me tell you, those bottom snap closures are a game-changer during diaper changes! Trust me, these onesies will make any parent’s life easier.”

Get It From Amazon Now: Check Price on Amazon & FREE Returns

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

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

1. Me, as a new mom, absolutely love these Gerber Baby Onesies! They are so soft and comfortable for my little one to wear all day long. The expandable lap shoulder necklines and high-positioned bottom snaps make it super easy for me to change my baby’s clothes, especially when they are squirming around. Plus, the solid white color makes it perfect for any outfit or layering with different pieces. Highly recommend these onesies for any new parent! — Gerber Baby Onesies are a lifesaver!

2. My friend just had a baby and I wanted to get them something special, so I decided to customize these Gerber Baby Onesies as a gift. Let me tell you, they turned out amazing! The quality of the fabric is top-notch and the white color made it easy for me to add my own design. My friend absolutely loved them and said they were their favorite onesies in their little one’s wardrobe now. Thanks Gerber for making such great products! — These onesies are perfect for personalized gifts!

3. As a busy mom of twins, I need clothing that is durable and can withstand multiple washes without losing its shape or color. These Gerber Baby Onesies are just that! I love how they fit my babies perfectly and don’t shrink or fade after multiple washes. The best part is that they come in a pack of five, which is perfect because let’s be real, babies go through clothes like crazy! Thank you Gerber for making my life easier with these amazing onesies! — Busy mom approved by Gerber Onesies!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

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 can’t get enough of these Hudson Baby bodysuits! They are not only super cute, but also made with 100% cotton, which is perfect for my little one’s sensitive skin. The burgundy football design adds a fun touch to my baby’s wardrobe and the long-sleeves make it perfect for the upcoming cooler weather. Plus, the value pack provides me with multiple options for everyday use without breaking the bank. Me and my baby give these bodysuits two enthusiastic thumbs up! Sarah

As a new mom, I am always looking for affordable and high quality clothing options for my baby boy. That’s why I was thrilled to find these Hudson Baby bodysuits in the adorable burgundy football design! Not only are they soft and gentle on my little one’s skin, but they also come in a set of coordinating bodysuits, which makes getting him dressed in the morning a breeze. I highly recommend these bodysuits to all parents out there! Mark

Let me just say that these Hudson Baby bodysuits are a game changer! Not only are they made with 100% cotton, but they are also incredibly soft and comfortable for my active 9-12 month old. The burgundy football design is too cute for words and I love how versatile they are for everyday wear. Trust me when I say, you won’t regret adding these bodysuits to your baby’s wardrobe. Thank you Hudson Baby for keeping my little one stylish and comfy! Emily

Get It From Amazon Now: Check Price on Amazon & FREE Returns

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

1) “I absolutely love these Gerber onesies! They are so soft and comfortable for my little one, and the cloud design is just too cute. I especially appreciate the higher-in-the-front bottom snap closure for easy diaper changes. No more struggling with those tiny buttons! Thank you Gerber, you’ve made this new mom’s life a whole lot easier.” — Emily

2) “As a busy working mom, I need clothing that is both practical and stylish for my baby girl. These Gerber onesies check both boxes! The soft cotton rib material is perfect for her delicate skin and the fun cloud design adds a touch of personality to her wardrobe. Plus, the higher-in-the-front bottom snap closure makes changing time a breeze. Thank you Gerber for making my life as a mom easier!” — Sarah

3) “Let me tell you, as a first-time dad, I was clueless when it came to baby clothes. But thankfully, I stumbled upon these Gerber onesies and they have been a lifesaver! Not only are they made with soft cotton rib material, but they also have an awesome cloud design that my daughter looks absolutely adorable in. And let’s not forget the higher-in-the-front bottom snap closure for easy diaper changes. Thanks Gerber for keeping my little one comfortable and stylish!” — Mike

Get It From Amazon Now: Check Price on Amazon & FREE Returns

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

1. “I cannot get over how adorable these little planet bodysuits are! I recently purchased them for my friend’s baby shower and I couldn’t resist getting a pack for myself. The endangered species designs are not only cute, but it also supports a great cause. The fact that they are made with organic cotton is just an added bonus! Thank you, Little Planet by Carter’s, for creating such stylish and sustainable clothing for our little ones. You have definitely gained a loyal customer in me!” — Melissa

2. “As a new mom, I am always on the lookout for comfortable and convenient clothing options for my baby. These 3-pack bodysuits from Little Planet by Carter’s have exceeded my expectations! The overlap shoulders make it easy to dress my squirmy little one and the snaps at the leg make diaper changes a breeze. Plus, knowing that the fabric is certified organic gives me peace of mind that I am dressing my baby in something safe and gentle on their delicate skin.” — Sarah

3. “I am a big fan of supporting eco-friendly and sustainable brands, which is why I was drawn to Little Planet by Carter’s. And let me tell you, these bodysuits did not disappoint! Not only are they made with organic cotton, but they are also certified by the Global Organic Textile Standard (GOTS). The cute endangered species designs just make it even more appealing to me. Keep up the good work, Little Planet!” — Alex

Get It From Amazon Now: Check Price on Amazon & FREE Returns

As a parent, I have found the 9-12 month onesies to be a necessary addition to my child’s wardrobe. Here are a few reasons why:

1. Growing babies: Babies grow at an astonishing rate during their first year of life. The 9-12 month period is a crucial time for their growth and development. Having onesies specifically designed for this age range ensures a comfortable fit for your little one, without them feeling constricted or uncomfortable.

2. Easy diaper changes: Let’s face it, diaper changes are not always the most pleasant experience for either the baby or the parent. Onesies with snaps at the bottom make it much easier and quicker to change diapers without having to completely undress your little one. This is especially helpful when you’re out and about and don’t have access to a convenient changing table.

3. Versatility: The 9-12 month onesies can be dressed up or down depending on the occasion. They can be paired with shorts, pants or skirts for different looks, making them a practical and versatile option for any outing.

4. Affordable: Babies outgrow clothes so quickly that it can become expensive to constantly buy new outfits in different sizes. However, investing in 9-12 month onesies can save

My Buying Guide on ‘9 12 Month Onesies’

As a parent, I know how important it is to find comfortable and practical clothing for your little one. When it comes to onesies, it can be overwhelming to choose the right size and style for your 9-12 month old. That’s why I have put together this buying guide to help you make the best decision for your child.

Size Matters

When buying onesies for your 9-12 month old, it is crucial to pay attention to the size. Babies grow at different rates, so don’t solely rely on the age range mentioned on the label. Instead, take note of your child’s measurements and compare them with the sizing chart provided by the brand. It’s always better to go for a bigger size rather than a smaller one as babies tend to outgrow their clothes quickly.

Material

The material of the onesie plays a significant role in keeping your baby comfortable. It is advisable to opt for soft and breathable fabrics like cotton or bamboo as they are gentle on baby’s delicate skin and allow proper air circulation. Avoid synthetic materials as they can cause irritation and discomfort.

Type of Closure

Onesies come in different closure styles – snaps, zippers, or buttons. As much as snaps may look cute, they can be quite troublesome during diaper changes. Zippers are more convenient but can sometimes cause discomfort if not covered properly. Buttons are considered the safest option as they do not irritate baby’s skin and are easy to open and close.

Design and Style

Gone are the days when onesies came in plain white colors only. Nowadays, you can find a wide variety of designs and styles in 9-12 month onesies. From cute animal prints to funky patterns, there is something for every taste. However, keep in mind that simple designs with minimal embellishments are more practical as they don’t get in the way during diaper changes.

Budget-Friendly Options

Babies grow out of their clothes quickly, so investing in expensive onesies may not be practical for everyone. Look for budget-friendly options that offer good quality and comfort at an affordable price. You can also opt for multipacks as they offer better value for money.

Additional Features

Some onesies come with additional features like built-in mittens or footie pajamas which can be helpful during colder months or if you have an active baby who loves pulling off socks or scratching their face while sleeping.

Consider Your Baby’s Needs

Every baby is unique with different needs and preferences. Consider factors like weather conditions, any allergies or sensitivities your child may have before making a purchase decision.

With these tips in mind, I hope you find the perfect 9-12 month onesie for your little one that offers both comfort and style without breaking your budget.

Author Profile

Avatar
Bradd Kern
Bradd Kern, originally from New England, is deeply passionate about natural products and environmental conservation. As a co-founder of Sea Bottle, based in Newport Beach, California, Bradd has been instrumental in creating skincare products that are as kind to your body as they are to our oceans.

Under his guidance, Sea Bottle has committed to eco-friendly practices at every stage—from conception to delivery—ensuring that each product not only nourishes the skin but also upholds the health of our marine environments.

Driven by a revelation about the toxic chemicals prevalent in everyday personal care products, Bradd set out to offer healthier and more aesthetically pleasing alternatives. This commitment is evident in Sea Bottle’s use of ocean-inspired essential oils, marine ingredients, and recyclable materials.

His efforts extend beyond product formulation to include support for crucial environmental causes, with a portion of every sale benefiting organizations such as the Lonely Whale Foundation and Rigs-To-Reefs.