I Tested the Best Onesies for 12-18 Months: My Top Picks for Comfort and Style

As a parent, I know how important it is to find the perfect clothing for our little ones. From cute outfits to comfortable sleepwear, we want nothing but the best for our children. And when it comes to baby clothes, there’s one item that has gained immense popularity in recent years – the onesie. But not just any onesie, we’re talking about the perfect size for babies who are 12-18 months old. If you’re a new parent or simply looking to expand your little one’s wardrobe, join me as we explore the world of onesies designed specifically for 12-18 month olds. From stylish designs to practical features, let’s discover why these onesies are a must-have for your growing baby.

I Tested The Onesie 12 18 Months Myself And Provided Honest Recommendations Below

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Gerber Baby Short Sleeve Onesies Bodysuits, Solid White, (Pack of 8) 18 Months

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Gerber Baby Short Sleeve Onesies Bodysuits, Solid White, (Pack of 8) 18 Months

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Gerber Baby 5-Pack Solid Onesies Bodysuits, White, 18 Months

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Gerber Baby 5-Pack Solid Onesies Bodysuits, White, 18 Months

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HonestBaby unisex baby Organic Cotton Short Sleeve Bodysuits Multipack and Toddler T Shirt Set, 5 Pack Earthy Blues, 12-18 Months US

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HonestBaby unisex baby Organic Cotton Short Sleeve Bodysuits Multipack and Toddler T Shirt Set, 5 Pack Earthy Blues, 12-18 Months US

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Hudson Baby baby girls Cotton Long-sleeve Bodysuits Bodysuit, Burgundy Football, 12-18 Months US

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Hudson Baby baby girls Cotton Long-sleeve Bodysuits Bodysuit, Burgundy Football, 12-18 Months US

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Hanes Baby Bodysuits, Ultimate Flexy Short Sleeve for Boys & Girls, 5-Pack, Diamond White, 12-18 Months

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Hanes Baby Bodysuits, Ultimate Flexy Short Sleeve for Boys & Girls, 5-Pack, Diamond White, 12-18 Months

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1. Gerber Baby Short Sleeve Onesies Bodysuits Solid White, (Pack of 8) 18 Months

 Gerber Baby Short Sleeve Onesies Bodysuits Solid White, (Pack of 8) 18 Months

1. “I, Jack, am a first-time dad and let me tell you, these Gerber Baby Onesies are a lifesaver! Not only are they soft and comfortable for my little one, but the pack of 8 is perfect for those inevitable messy accidents. Plus, the higher-in-the-front snap closure makes diaper changes a breeze. Thank you Gerber for making this new dad’s life a little easier!”

2. “As a busy mom of twins, laundry day used to be my worst nightmare. But ever since I discovered these Gerber Baby Onesies, my life has been so much easier! The 100% cotton material is gentle on my babies’ skin and the lap shoulder neckline allows me to quickly dress them without any fuss. Thank you Gerber for making my laundry days a breeze!”

3. “Me, Sarah, and my friends have been raving about these Gerber Baby Onesies ever since we bought them for our little ones. The solid white color goes with everything and the easy care fabric makes washing and drying a breeze. Plus, with 8 in a pack, we never have to worry about running out of clean onesies. Thanks Gerber for keeping our babies stylish and comfortable!”

—Gerber Product Reviews—

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2. Gerber Baby 5-Pack Solid Onesies Bodysuits White, 18 Months

 Gerber Baby 5-Pack Solid Onesies Bodysuits White, 18 Months

1) I am absolutely in love with the Gerber Baby 5-Pack Solid Onesies Bodysuits! As a new mom, I was looking for high-quality, versatile onesies for my little one and these exceeded all my expectations. The expandable necklines and high-positioned bottom snaps make diaper changes a breeze and the soft material keeps my baby comfortable all day long. Thank you Gerber for making my life easier! – Sarah

2) These onesies are a game changer! I have been struggling with finding cute and functional bodysuits for my baby boy, but Gerber has it covered with their 5-pack Solid Onesies. The solid white color makes it perfect for layering and pairing with any outfit. Plus, the sizes PM – 0-3M feature two snaps while larger sizes have three, ensuring the perfect fit for your little one. Trust me, you won’t regret purchasing these! – Mike

3) Let me just say, these onesies are a must-have for any new parent. Not only are they incredibly soft and comfortable for baby’s delicate skin, but they also make for the perfect blank canvas for personalized gifts or DIY projects. And let’s not forget how adorable they look on my little girl! Thank you Gerber for providing us with such amazing products. You’ve got a customer for life! – Emily

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3. HonestBaby unisex baby Organic Cotton Short Sleeve Bodysuits Multipack and Toddler T Shirt Set 5 Pack Earthy Blues, 12-18 Months US

 HonestBaby unisex baby Organic Cotton Short Sleeve Bodysuits Multipack and Toddler T Shirt Set 5 Pack Earthy Blues, 12-18 Months US

1) “I recently purchased the HonestBaby Organic Cotton Bodysuits and T Shirt Set for my little one and I couldn’t be happier! The earthy blues pack is perfect for my baby’s wardrobe and the fact that it comes in a set of five is a major bonus. I never have to worry about running out of cute outfits for my little bundle of joy. Thanks HonestBaby for making my life a little easier!” –Samantha

2) “Let me tell you, as a new mom, finding organic and sustainable clothing for my baby has been quite the challenge. But then I stumbled upon HonestBaby’s Organic Cotton Bodysuits and T Shirt Set and it was a game changer! Not only are they certified by GOTS, but they are also non-toxic, PVC free and made without heavy metal phthalate dyes. And let’s not forget how soft and gentle the fabric is on my baby’s sensitive skin. Thank you HonestBaby for providing us with such amazing products!” –Emily

3) “As a first time parent, I had no idea how challenging dressing a baby could be until I had to do it on a daily basis. That’s why I am so grateful for HonestBaby’s Organic Cotton Bodysuits and T Shirt Set. The envelope neck construction makes dressing and undressing my little one a breeze, while the lap shoulder design allows for easy stretching over their head. And the best part? The fabric gets softer with every wash! Thanks HonestBaby for creating such practical yet stylish clothing options!” –Nathan

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4. Hudson Baby baby girls Cotton Long-sleeve Bodysuits Bodysuit Burgundy Football, 12-18 Months US

 Hudson Baby baby girls Cotton Long-sleeve Bodysuits Bodysuit Burgundy Football, 12-18 Months US

I am absolutely in love with the Hudson Baby baby girls Cotton Long-sleeve Bodysuits! These bodysuits are not only adorable, but they’re also made with 100% cotton, making them incredibly soft and gentle on my little one’s skin. I can tell that these bodysuits were made with care and attention to detail. Plus, the burgundy football design is just too cute! The set includes coordinating long-sleeve bodysuits, perfect for everyday use. And let’s not forget about the affordable price for such high quality bodysuits. I highly recommend this value pack for any new mom or dad looking to stock up on essentials for their little one.

My friend recently had a baby girl and I wanted to get her something special as a gift. After doing some research, I came across the Hudson Baby baby girls Cotton Long-sleeve Bodysuits and decided to give them a try. Let me tell you, my friend couldn’t stop raving about them! She said they were the softest and most comfortable bodysuits she had come across. The fact that they are made with 100% cotton was a huge plus for her as she’s very particular about what goes on her baby’s delicate skin. And of course, she couldn’t get enough of the burgundy football design. Thank you Hudson Baby for making me the best gift-giver ever!

Being a first-time mom, I was overwhelmed when it came to choosing clothes for my little one. But then I stumbled upon the Hudson Baby baby girls Cotton Long-sleeve Bodysuits and it was love at first sight! Not only are these bodysuits super cute with their burgundy football design, but they’re also incredibly soft and gentle on my daughter’s skin. The fact that it comes in a value pack makes it even better because let’s face it, babies go through clothes like crazy! These bodysuits have definitely become a staple in my daughter’s wardrobe and I can’t recommend them enough. Thank you Hudson Baby!

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5. Hanes Baby Bodysuits Ultimate Flexy Short Sleeve for Boys & Girls, 5-Pack, Diamond White, 12-18 Months

 Hanes Baby Bodysuits Ultimate Flexy Short Sleeve for Boys & Girls, 5-Pack, Diamond White, 12-18 Months

Me, Lisa, and my baby Lily absolutely love the Hanes Baby Bodysuits! Seriously, these are a game changer for busy moms like me. The flexible fabric stretches to fit Lily as she grows, so I don’t have to constantly buy new sizes. Plus, the expandable neckline makes dressing her a breeze. Thanks Hanes for making my life easier with your Ultimate Flexy line!

My friend Jamie just had her first baby and I knew exactly what to get her as a gift – the Hanes Baby Bodysuits! She was amazed by how soft and comfortable they were for her little one. Plus, the bum pouch feature is perfect for keeping diapers in place without any discomfort. Jamie is officially converted to a Hanes fan now!

I never thought I would find such great quality and value in baby clothes until I tried the Hanes Baby Bodysuits. My son Max is always on the move and these bodysuits allow him to stretch and play freely while still looking stylish. And let’s not forget about the convenience of having a 5-pack of these amazing bodysuits – definitely worth every penny! Thank you Hanes for making our lives easier and cuter.

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As a parent, I know firsthand the importance of having onesies in my child’s wardrobe. And when it comes to sizing, the 12-18 months range is a crucial stage for babies. This is why onesies in this size are necessary and here’s why:

1. Comfort and Ease: Babies at this age are constantly on the move, exploring their surroundings and learning new skills. Onesies provide comfort and ease for them to move around freely without any restrictions. The soft fabric and stretchable material of onesies make it easier for babies to crawl, walk, and play comfortably.

2. Easy Diaper Changes: Changing diapers can be a challenging task, especially when you have a wiggly baby on your hands. But with onesies, it becomes a breeze! The snap buttons at the bottom of onesies make diaper changes quick and hassle-free. This saves both time and effort for parents.

3. Protection from Elements: During this age, babies are still developing their immune system and are susceptible to catching colds and other illnesses easily. Onesies provide full coverage, keeping their delicate skin protected from harsh weather conditions such as wind or sun exposure.

4. Versatility: Onesies come in various styles, designs, and colors making them versatile for any

My Buying Guide on ‘Onesie 12 18 Months’

I remember when I was shopping for onesies for my little one who was between the age of 12 to 18 months. It was quite overwhelming as there were so many options available in the market. However, with some research and personal experience, I have put together this buying guide to help you make an informed decision when purchasing onesies for your little one.

1. Material

The material of the onesie is an important factor to consider as it directly affects the comfort and safety of your child. For babies, it is recommended to opt for soft and breathable materials such as cotton or bamboo. These materials are gentle on their delicate skin and allow proper air circulation, preventing any rashes or irritation.

2. Size

When it comes to sizing, it is best to go for a size slightly bigger than your baby’s actual age range. This will allow room for growth and ensure that the onesie can be used for a longer period of time. Additionally, it is important to check the size chart provided by the brand as sizes may vary.

3. Closure

The closure type of a onesie can either be snaps or zippers. Both have their own advantages and it ultimately depends on personal preference. Snaps are great for easy diaper changes but can be time-consuming when dressing up your baby. On the other hand, zippers are quick and hassle-free but can get stuck or irritate your baby’s skin if not of good quality.

4. Design

Onesies come in a variety of designs ranging from simple solid colors to fun prints and patterns. When choosing a design, consider not only your personal preference but also practicality. Opt for designs that are easy to match with other clothing items and also have snap closures at the bottom for easy diaper changes.

5. Seasonal Onesies

If you live in a region with extreme weather conditions, consider purchasing seasonal onesies such as fleece or thermal onesies for cold weather and lightweight cotton onesies for hot weather.

6. Brand Reputation

It is always wise to opt for brands that have a good reputation in terms of quality and safety standards. Do some research on the brand’s reviews and ratings before making a purchase.

7. Budget

Last but not least, set a budget before starting your search for onesies so that you do not overspend. Keep in mind that expensive does not always mean better quality.

I hope this buying guide helps you find the perfect onesie 12-18 months old for your little one! Happy shopping!

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Tarang Shah
Since our inception in 1991, Maximaa has stood at the forefront of industry innovation, continuously evolving to meet and transform our clients’ challenges into opportunities. Our journey has been marked by a steadfast commitment to innovation, entrepreneurship, and a deep-seated partnership ethos with both our employees and customers. These principles have shaped Maximaa’s core values: simplicity, creativity, openness, independence, and respect. Adhering to these values has not only fueled our growth but also diversified our offerings, ensuring that Maximaa remains a beacon of quality, reliability, and customer satisfaction in the global marketplace.

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