Description

Where Magic Meets the Ocean

Half unicorn, half mermaid, fully ridiculous - in the best way. This unicorn mermaid onesie has a fish-scale pattern layered over every color of the rainbow, from deep red through orange, yellow, green, and purple. The white belly panel keeps things grounded while the 3D unicorn hood brings the fantasy with embroidered eyes, a plush horn, and a striped rainbow mane. Polyester flannel construction means it is warm, lightweight, and machine-friendly.

Family Sizing

Sized for the whole family - kids start at 4T (height 90cm) and adults go up to XL (height 185cm). The hip zipper is there when you need it. Cuffed ankles and wrists seal in warmth without making it hard to move around. It is the Unicorn Onesies collection standout, hands down.

If your kid is into the underwater fantasy thing, pair this with something from the Unicorn Hoodie collection for layering options. Or grab the Prints Onesie for a totally different pattern that is equally bold. Bedtime has never been this extra.

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Rainbow Mermaid Unicorn Onesie

    $25.90

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      All orders are processed within 1 to 3 business days (excluding weekends and holidays). You will receive a confirmation email with a tracking number once your order has shipped.

      Estimated delivery times after shipment:

      • United States & Canada: 4–11 days
      • Europe: 6–12 business days
      • Rest of the world: 10–20 business days

      Delivery times may vary depending on your location and customs processing. For full details, see our Shipping Policy.

        14-day money-back guarantee

      What if you don't like the product or it is flawed? You have 14 days to return it to us.



        24/7 Customer Service

      Contact our customer service team 7 days a week by e-mail if you have any questions or require advice.

      Description

      Where Magic Meets the Ocean

      Half unicorn, half mermaid, fully ridiculous - in the best way. This unicorn mermaid onesie has a fish-scale pattern layered over every color of the rainbow, from deep red through orange, yellow, green, and purple. The white belly panel keeps things grounded while the 3D unicorn hood brings the fantasy with embroidered eyes, a plush horn, and a striped rainbow mane. Polyester flannel construction means it is warm, lightweight, and machine-friendly.

      Family Sizing

      Sized for the whole family - kids start at 4T (height 90cm) and adults go up to XL (height 185cm). The hip zipper is there when you need it. Cuffed ankles and wrists seal in warmth without making it hard to move around. It is the Unicorn Onesies collection standout, hands down.

      If your kid is into the underwater fantasy thing, pair this with something from the Unicorn Hoodie collection for layering options. Or grab the Prints Onesie for a totally different pattern that is equally bold. Bedtime has never been this extra.

      Size chart
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