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Watery mermaid tail for kids - Milky Way


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8 years / 130 cm
10 years / 140 cm
12 years / 150 cm

Add monofin + 22€

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1 pcs. Buy more and save
Why? Our warehouse is chaos-organized. The same sizes/colors are not placed in the same location. We save money in our handling when we only have to pick from one location - that's why the quantity discount only applies to the same size and color. Consider it a bonus that we share the savings with you.

Only applies to the same size and color

NB! This is a pre-order with delivery in week false (01/01 - 08/01)

We have already confirmed that the delivery of this item is on its way to our warehouse. Read more below.

🚚 Scheduled delivery time: Week false (01/01 - 08/01)

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However, please be aware that this date is indicative, but in 98% of cases, it is met. We cannot specify whether it will be at beginning or the end of the respective week. If this changes for your order, we will always proactively inform you of the new expected delivery date via email.

💰 Free shipping on all pre-orders regardless of the amount

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If you order this product as a pre-order, you will receive free delivery with the cheapest delivery method regardless of the order amount. This also applies to any other other purchased items in the same order.

🖇️ Order will be shipped together with the pre-ordered item

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If you order other products on the same order along with this pre-ordered item, then your entire order will first be shipped together at the same time as the pre.ordered item, which is in week false (01/01 - 08/01).

🔄 365-day return policy starts once when we dispatch the order.

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We will charge the full amount for your order, including the pre-order item and any other purchased items, 2 days after the order is completed. We do this to avoid additional late payment fees. You can still cancel and get a refund for the pre-order item and/or the entire order until dispatch - it just requires a call, a chat, or an email.

NB! Pre-order for week false (01/01 - 08/01)
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Free delivery over €79 (under = €4)

Get free delivery to a parcel shop with An Post on orders over 79€. Below that, delivery costs from just 4€. Delivery is 3-5 days for orders placed before 9 PM

365 days free exchange

We (also) hate stress. That's why you have 365 days to exchange/get a voucher. And it's completely free through our returns system. For regular returns, you have a full 30 days. 

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We have helped more than 650,000 people with their equipment and swimwear. They have given a Trustpilot score of 4.7 out of 5.0. They all chose Watery because of these unique benefits.

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We love to help. That's why we're available Monday-Friday from 7 AM to 9 PM. In the weekend between 9 AM to 3 PM. See contact options here.


Our mermaid tail costume in these beautiful shades of blue and pink gives your child the opportunity to look like a real mermaid underwater. The costume is mermaid tail only, so the accompanying monofin must be purchased separately. This mermaid tail is part of our beautiful Milky Way collection.

The tail is made from a combination of polyester and cotton, which makes the fabric resistant to chlorine/salt and particularly flexible around the lower body. In addition, an elastic band has been added at the top to ensure a snug fit up to the waist. At the bottom you will find buttons to close the fabric itself around the monofin.

Create your own galaxy in the water with our Milky Way mermaid costume. With Milky Way's bluish hues in an almost galaxy-like design, every girl will be enchanted by the new universe that the mermaid tail invites you to under the surface of the water.

Product specifications for our mermaid tail costume for kids:

  • The fabric is made of 95% cotton and 5% polyester, which makes the mermaid costume resistant to chlorine/salt, so it keeps its color and fit and ensures a comfortable fit.
  • A tight and elastic closure at the top so it fits naturally to the body and doesn't fall down while swimming.
  • Realistic colors and nuances that make sure your kid will look just as adorable as a real-life mermaid princess

Get the complete Milky Way set:

When you buy our mermaid tail costume, we recommend that you buy the accompanying Fin Fun monofin for kids if you don't already have it. Please note that the Fin Fun monofin fits costumes in the following sizes: 130, 140 & 150.

If your kid wants to go all-in on looking like a mermaid, you'll find our matching bikini set with a top and bottom here.

Our mermaid tail costume is also available in the color variants Blue Ocean, Sunrise, Milky Way and Rainbow Bloom.

Washing instructions for fabric:

  • Wash at 30° or lower.
  • Do not tumble dry.
  • Iron on low heat only.
  • Do not use highly concentrated detergent containing chloride. Otherwise, the beautiful colors may fade..

Complete your mermaid tail outfit:

Many people use this mermaid tail for themselves, but if your kid wants to live the dream to the fullest, we also have a matching top and bottom for girls - it's as close as you can get to being a real mermaid or merman.

How to put on your kid's mermaid tail:

It's super easy to put on the mermaid tail. This is especially easy as we have incorporated buttons into the fabric part. In fact, it only requires two steps.

  1. Place your feet firmly in the monofin.
  2. Pull the fabric part over the monofin and upwards on yourself. The fabric should wrap around the belly, butt and hips.

Then your kid is ready to jump in the water and swim.

Precautions when using the Watery mermaid tail:

The monofin is extremely durable, but it is recommended that children do not stand on the monofin itself as there is a risk of it breaking. This is also true for the fabric part, which can wear and tear from standing and walking on it.

If you are looking for a mermaid tail for your kid that is durable and makes your kid look like a "real" mermaid or merman, then this one from Watery is a great choice.

*Monofin is ONLY available in sizes 8, 10 and 12

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    Customer Reviews

    Based on 14 reviews
    Karl Kruse
    Unique experience

    Fast dispatch. Fantastic customer service. Not the last time I shop here.

    Bolette Edaardsen

    It all seemed easy and fast

    Irene Hansen

    Watery Mermaid Tail for Kids - Rainbow Bloom (excl. Monofinne)

    Karin K. Tromborg Vad
    The best for a little water -happy girl

    My daughter loves her fine mermaid tail and is practicing to become even better at swimming with it.

    Susanne S.


    Pernille e.
    Super nice mermaid tail

    Super nice mermaid tail

    Lenette T.
    The child was extremely happy

    The child was extremely happy

    Birgitte F.
    Really delicious case

    Really delicious case

    Lars Sandvik
    Satisfied all the way

    From order to the swimsuit was received, and not least used, we were satisfied. Just make sure it is ordered to find. Fortunately, it was included this spring.

    Theresa Glifstam
    Very nice suit. It's just a shame

    Very nice suit. It is a pity that I did not realize that the hard fins were not included when it was in the picture and the text was not visible. Now that I want to order the fin, it is sold out and also costs more than if you buy it with the suit.

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    Get advice and assistance right now

    Do you have questions about products, recommendations, or returns? Click here to ask our product experts and customer service between 7 AM to 9 PM on weekdays. We look forward to hearing from you.

    Free exchange / easy returns

    Yes, that's right. Exchange is completely free when using our fast return system - without the need for a printer. Click here to learn more. Regular returns cost €5.

    Free 3-5 days shipping over €79

    Delivery is on us when you purchase for over €79. Below that threshold, it costs starting from €4. We deliver with An Post.

    In doubt? Check out our recommendations.

    Not sure if this is the right product for you? Click here to see our detailed product recommendations. Handpicked by our founder.



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