Can I order just one custom onesie?

Yes, absolutely. GPTShirt.ai offers custom onesies with no minimum order size. This makes it simple to create the perfect personalized gift for a baby shower or a one-of-a-kind announcement.

How are GPTShirt onesies printed?

We use premium, water-based Direct-to-Garment (DTG) printing that results in a print that is soft, smooth, and safe for infant skin. The DTG ink blends into the soft cotton, ensuring the design is durable but not stiff.

What materials are your onesies made from?

Our one-pieces are made from 100% Airlume combed and ring-spun cotton. This material is renowned for being exceptionally soft and gentle, providing maximum comfort and stretch for your baby.

What colors and sizes are available?

We offer a wide range of popular colors in standard baby sizing. The best way to see all available colors and sizes is to launch our AI Designer, where you can preview your design instantly.

How do I choose the right size?

We offer standard infant sizing. Please consult our size chart which includes weight and height suggestions. The one-pieces are designed with an envelope neck and three-snap closure for easy dressing and quick changes.

How should I wash my custom onesies?

For best results and to maintain the print's quality, wash the garment inside out in cold or warm water. Use a gentle cycle and mild detergent. Tumble dry on low or hang dry. Do not use bleach.

Can I design on both the front and back of the onesie?

Yes. You have full creative control to place your design on the front or back of the one-piece. Our design tool allows you to easily position your artwork for the best look.

How much does shipping cost and how long does it take?

We offer free standard shipping on all orders. You can typically expect your custom onesies to be printed, processed, and delivered within 5–7 business days. Expedited shipping is available at checkout.

Will my AI design look good when printed?

Absolutely. Our AI tools are built to create high-resolution, print-ready designs that are perfectly suited for printing on infant apparel. The DTG production ensures the colors are vibrant and the details are sharp.

Can I order onesies in bulk?

Yes. You can order as many custom onesies as you want in one order. Our platform makes it easy to apply your design across multiple sizes and colors, perfect for family reunions or large baby shower events.

Design and PrintCustom Onesie with AI

Create with AI in minutes. High-quality prints, no order minimums, and fast delivery.

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Fit

Colors:

Sizes:

from $23.95

Custom Onesies are printed on demand

No order minimums required

DTG Print Customization Options

Front print - Full-color custom designs
Back print - Double-sided printing available

Direct-to-garment (DTG) printing delivers vibrant, full-color custom onesie designs with exceptional detail and durability

How it works

Designing custom baby onesies with GPTshirt is fast, fun, and free until you order. Go from idea to print in minutes!

Design Your Custom Baby onesie — Use the GPTShirt.ai tool to instantly create a unique print-ready graphic just by typing in your idea. Choose your premium baby onesie style and place your design perfectly on the front or back of the baby onesie.

DTG Printing on Soft Cotton — Once your order is placed, we use high-quality Direct-to-Garment (DTG) printing to apply your design to the Airlume cotton. DTG provides a vibrant, full-color finish that is soft and breathable, with no minimum order size required for any custom baby onesie.

We Ship Your Custom Baby onesie — Your unique baby onesie is carefully packaged and shipped. We offer free standard shipping and guarantee your custom printed baby onesie will arrive at your door quickly, ready to wear and impress.

Why GPTShirt

Easy AI Design

Stop trying to find pre-made designs that fit you or struggling to make your own with GPT for hours. Our AI tool makes baby onesie graphic generation fast and easy. We handle complex tasks like background removal and you can view a live preview of your design on the baby onesie before ordering. This ensures a professional and perfectly positioned print-ready file.

Premium Quality

We use premium blanks like Airlume combed and ring-spun cotton for a superior feel. Paired with our DTG printing your design is absorbed into the soft fabric fibers creating a vibrant detailed and breathable custom baby onesie print.

No Minimums

We specialize in custom baby onesie with no minimum. Order one personalized baby onesie or a hundred for your event. Enjoy no setup fees and free standard shipping on all orders.

Featured Designs

Discover trending AI-generated designs loved by our community. Get inspired and create your own custom custom baby onesies.

See more designs →

What Our Customers Say

Join thousands of creators who trust GPTShirt for their custom designs

"I made my own shirt in five minutes. This tool is magic – and so much easier than trying (and failing!) to get ChatGPT to do what I want for hours!"

— Jordan R.

"Best print quality I've ever seen on a custom tee. Super soft and vibrant."

— Mia L.

"No minimum orders meant I could test my design before launching my brand."

— Carlos P.

Frequently Asked Questions

Want to learn more? Here's Everything you need to know about creating customcustom baby onesies with GPTShirt.

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Ready to Create Magic?

Create one-of-a-kind custom onesie quickly and easily with AI.