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The Onesie Extender


In Stock

100% Money Back Guarantee + Free Returns

Sometimes our little ones grow faster than their clothes can keep up. Rather than picking up a new set of onesies, try these onesie extenders! This revolutionary product is so simple but such a game changer. Like all of our products, this uses high-quality material that has been parent-tested and approved. 

These extenders not only extend the life of your favourite onesies, but of your wallet as well by eliminating the need to replace good condition clothing just because it's too short. 

Main Benefits:

  • Go from "None of these fit!" to "All of these fit!" with a single extender that can be used on countless onesies 
  • Just a few snaps and adding, swapping and removing the extenders  is a breeze
  • Selection of colours means you can coordinate with the clothes you already have


We all have our favourite onesies, whether it's the cute pattern, the nice wide neck or the perfect colour that hides every yogurt stain, but sometimes we don't get much time to show them off. They can hit a growth spurt the minute we clip the tags and perfect condition tops end up in the "Donate" box. With this simple fuss-free product, you can give extra life to those and many other onesies. With our easy online store, you can browse with confidence knowing any necessary returns or exchanges are quick and painless.

Free Shipping For Over $35.00 to

As parents, we get it: we all want the very best for our kids (even when they drive us crazy), but there can be a lot of leg work involved in figuring out what that is and actually getting it. That's where we come in - we've done that leg work to source products that we're excited to share with other parents looking for a better buying experience. Our clothes & accessories are all impeccably well made, stylish, and most importantly, the level of quality you want for your little ones.

We save you even more time by offering our entire collection through our online store - no trip to the mall required.

We're so confident that you'll be happy with our products that we offer a 30-day money back guarantee and free returns on everything we sell. If you do need to send something back, contact our amazing customer service team to take advantage of our free returns.

Caution: purchasing Moonbun baby clothes may result in an increase in fashion game that can spread to other members of the family. You may experience an increase in compliments or, in extreme situations, envy from friends. Decreased frustration in daily outfit selection is expected and can be managed through all the other things your kids might do to make you late in the morning.


Our Guarantees

Here are 4 more great reasons to buy from us:

FREE SHIPPING Free fully tracked shipping Worldwide over USD 35

SUPPORT 24/7 Contact us 24 hours a day, 7 days a week. Our average response time is under 24h.

30 DAYS MONEY BACK GUARANTEE Simply return it within 30 days for an exchange or a refund. Moonbun guarantee.

100% SECURE PAYMENT SSL encrypted checkout. All major payment methods accepted.



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Additional Information


Blue, Pink, White, Yellow