Shopping Cart

Ocean Deep Mermaid Tail + Monofin Set

Size Chart Size Chart Size Chart Regular price $69.95 Sale price

Compare at $105.95

Whether the ocean has called to you for years or you just love the idea of becoming a mermaid, our Ocean Deep mermaid tail and monofin set is the perfect option for you. With its dark blue coloring and green shimmer, this realistic set offers everything you need to transform into a mermaid who can truly swim with fins. Simply choose your size in our Ocean Deep mermaid tail and monofin set and we will do the rest as far as choosing the monofin size. By purchasing the tail and fin set, you are saving money while making all your mermaid dreams come true.

  • New Mer-Shield Coating protects mermaid tails from wear and holes.
  • 1-Year Warranty – free replacements for rips, tears, and breaks.
  • Superior design, comfort, and control have earned our monofins two patents.
  • Super-fast shipping and excellent customer service from a USA company.
  • Child sizes M - XL will come with a Keiki sized fin.
  • Teen/adult sizes JS - JL will come with a Nunui sized fin.

Monofin included


Our Ocean Deep tail is a beautiful mix of deep blues and turquoise colors.  It matches our blue and turquoise monofins.

The patterns are even prettier when wet! You'll look like a real mermaid with real scales.

Comfort and Quality

Our realistic scale mermaid tails are made from 80/20% nylon/spandex material with 4 way stretch. The swimsuit material is very comfortable and works well for swimming, or as a mermaid costume.  

Size Chart Fabric and care instructions

Who We Are

Sun Tail Mermaid is an American company that makes the best mermaid tails for swimming - how fun is that? What started out as a Kickstarter product is now a multi-family business. Our products are built to last, comfortable to use, and we have the best prices around. Here are our store policies. 


Customer Reviews

Based on 12 reviews
Great value!

Suntail is one of the cheapest, yet safe, options out there! Their tails come in great quality, and the monofin is pretty comfortable too.

They have great customer service as well. I ended up cracking my monofin and they sent me a new one completely free!

I have tails from Suntail, Magictail, and mertailor, but my ocean blue Suntail has a special place in my heart.

Thank you for your kind words. Make us happy that you are enjoying your mermaid tail and monofin! :)

Evelyn V.
Great, Just One Problem

I loved the tail, honestly it was an amazing experience! My swim was amazing, however, it honestly took a REALLY long time to get. Now, I know that with the pandemic (COVID-19 or coronavirus) it's hard to stock and restock, but it took me A WHOLE MONTH just to get it to be able to be shipped. Once I got it (about a week ago) I realized how much of an amazing tail it was! I was able to swim freely, quickly, and having tons of fun swimming. The tail itself is amazing, but I'm giving it 4 stars for the wait. Other than that, it's an amazing tail, and I will recommend it to all my friends and family! P.S. Have an awesome time mermaiding! I recommend this as long as you can wait a little while!!
-Evelyn V


I bought this tail second hand from another merfriend, it arrived yesterday and I'm amazed how realistic it looks!
I also have the finfun blue tang, but I'd definitely advice people to get a suntail, as your designs look more realistic, the monofin fits more secure and has a LOT more propulsion!
Overall, I'm very happy I got one and I've should done that a lot earlier! :)

Destiny Higgins
Awesome service and product!

I ordered another brand tail for my daughter and it was very cheap. I ordered here and paid for express shipping as I needed it in two days. I receive my product on time as promised. I am very impressed with the quality of the product. It is very true to size and fit my daughter perfectly. I will purchase here again.

Faith Brownlee
Highly Recomend!

I have 3 of these mermaid tails and am always impressed by the quality of the fabric and monofin! They are so comfortable and easy to swim in and look amazing to boot! The ocean deep has an incredible inky colour to it and fits me so well!