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Sea Monster Mermaid Tail + Monofin Set

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

Compare at $105.95

Get a discount by ordering your mermaid tail and monofin together! Just choose your tail size and we will provide the right monofin.

  • 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.

Bring your fantasy to life with our Sea Monster mermaid tail and monofin set. Have you always dreamt of being a mermaid, but maybe not the good kind that's always portrayed in movies? In some cases, there's fun to be found in being bad and some of us have always itched to play an evil villain. If you can't get a role in the next blockbuster, put on our Sea Monster mermaid tail and monofin set instead and rule your kingdom the way you want, with flair and darkness.

The best part about our Sea Monster mermaid tail and monofin set is that it not only looks great on land, but it looks wonderful in the water too. Learn to swim in your pool with it or take it to the ocean once you've mastered swimming with a fin. Our mermaid tails and monofin sets are designed to withstand the sun and water, so you can have aquatic fun.

Monofin included


Sea Monster is an awesome mermaid tail design inspired by fantasy beasts with reptilian scales. Made with a compelling combination of blacks, yellows, browns, and greens, this tail looks great with a black monofin.

Comfort and Quality

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

The scales feature a 3-D design in swirling and textured hues. The fins are designed to look like a real mermaid tail. 

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 6 reviews
Amazing first tail!

I am a college student. I purchased my Sea Monster mermaid tail last summer because I wanted to try out mermaiding. Throughout the summer, I swam in the tail in multiple locations and absolutely fell in love with it. This tail shipped quickly, is very comfortable, and is absolutely gorgeous in person. I highly recommend it!

Laura Nichols
Stunning First Tail!

This is my first mermaid tail, and I absolutely loved it. I've swum in it two times, and it was absolutely magical. There have been a few problems, for example the stitching on the neoprene protectors is coming undone, but given they aren't having direct contact with the walls, it is okay! The foot pockets are a little loose, so wearing the monofin alone is difficult (unless you have massive feet) but wearing the skin definitely helps secure it. I love how there are two footpockets, a feature that some monofins don't have.

In short, I absolutely love this tail, and would definitely recommend buying this whether you are a new or experienced mermaid.

So Fun!

I just got my tail and it's so fun to swim in! The fabric is amazing and so smooth. The Monofin fit perfectly and was surprisingly comfortable. Both the tail and monofin are amazing quality. The only problem was the shield tape came off fairly easily but that's not a major issue. I'm so happy I got this tail!

So beautiful!

Thrilled to have this tail in my life, arrived so promptly after I had ordered it! So fun to swim in and unique colors. I absolutely love it!!!

Rea Holden
Love the tail

Received the tail very beautiful, it was an anniversary gift. Haven't got to use it yet but she loves it received on time. I would order again when we see another one we live.