Celebrate in Style with Custom First Birthday Outfits

A first birthday is a milestone, and what better way to mark the occasion than with a custom first birthday outfit? At Custom One Online, we offer a range of personalized shirts, onesies, and accessories to make your little one's celebration extra special.

Whether you’re planning a big birthday bash or an intimate gathering, our first birthday outfits come in a variety of designs, from cute and playful to elegant and stylish. Add your baby’s name, age, or a special message to create a memorable outfit that will be the star of the party.

Custom T-shirts & Promotional Products for Your Group

Our top-selling Apparel for every occasion!

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Our Services – Custom Printing Solutions for Every Need

From screen printing to direct-to-garment and vinyl transfers, we offer premium printing services tailored to your unique needs.

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Unique Custom Designs for Your Baby's First Birthday

Make your baby's first birthday unforgettable with a custom-designed outfit that’s as unique as they are. Our user-friendly design tool lets you add fun elements like birthday-themed graphics, playful fonts, and adorable animal illustrations to make your first birthday outfit pop.

Choose from a variety of styles, including comfy onesies, soft t-shirts, or even long-sleeve t-shirts for cooler weather. You can also include your baby's name or a special message to make the outfit one-of-a-kind. Looking for something extra special? Try our heat transfer vinyl for sparkly designs or glitter accents that will shine through in photos.

First Birthday Outfits for Boys and Girls

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Comfortable and Soft Fabrics for Your Baby’s Special Day

When it comes to babies, comfort is key. Our first birthday outfits are crafted from soft, breathable fabrics to ensure that your little one stays comfy all day long. We use only high-quality cotton to create shirts, onesies, and dresses that are gentle on delicate skin.

In addition to comfort, durability is essential for those first birthday party photos and memories. Whether you’re dressing your baby for their cake smash or a family photo, our garments are designed to withstand all the fun and laughter of the day. Looking for a bulk order for family or friends? Our screen printing services make it easy to get matching outfits for everyone.

Fast Turnaround for Your Baby’s First Birthday Outfit

Planning a first birthday celebration takes time, and Custom One Online knows that getting the right outfit is a priority. That's why we offer same-day shipping on select orders, so you can get your custom first birthday outfit quickly.

We understand how important this special occasion is, which is why we make sure your custom outfits are processed and shipped promptly. Whether you're ordering one personalized onesie or a batch of shirts for the entire family, you can count on us to meet your deadline and deliver your order on time.

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Why choose us?

Over 10 years experience

  • Over

    142k

    products sold

  • With

    95%

    positive reviews

  • Selling in

    74

    territories

Don't take our word for it...

  • Top quality

    Very high quality T shirts and very clear screen printing! The mock up does not do the final product justice! I’ll order again!


    Mark Kirlin
  • Great selection

    Shirts were Perfect !!! Heavier construction than I expected which is awesome, and the print was also heavy duty and to perfect detail.


    Lucas “Jonny Bright” Martin
  • Fast shipping

    Our t-shirts look great - and we received them quickly and at a great price. These are the folks I will always turn to for personalized tees!


    Julie Weir
  • Reliable Store

    The shirts came out great. Beautiful printing. It held up great in the wash. Thank you for a seamless and smooth transaction. I will be back for more!!!


    Brian Hopkins
  • Excellent service

    My 2 shirts came out awesome!!! They created a talking point between me & my favorite guitarist GeorgeLynch. (At his final 2 AZ shows). He loved the shirts & asked his guys "why they didn't have shirts like mine?"


    Ken Servais
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Request A Quote!

We're available 24/7 to assist. Just let us know what we can help you with and we'll do our best.

Frequently Asked Questions – All You Need to Know

Find answers to your questions about our custom printing services, ordering process, shipping, and more at Custom One.

Why Choose Custom One Online for First Birthday Outfits?

Custom One Online is your go-to destination for high-quality, personalized first birthday outfits that make the celebration even more special. With a range of fabrics, colors, and designs to choose from, we offer custom options that are perfect for your little one’s first big day.

Not only do we specialize in custom designs, but we also provide premium printing techniques, including Direct to Garment (DTG) and Direct to Film (DTF), to ensure vibrant, lasting designs. We’re committed to helping you create the perfect outfit for your baby’s first birthday and deliver it in time for the celebration.