---
product_id: 43654799
title: "Sun Tails Mermaid Monofin - Swim Fin in Kid and Adult Sizes"
brand: "sun tails"
price: "A$121"
currency: AUD
in_stock: true
reviews_count: 9
category: "Sun Tails"
url: https://www.desertcart.com.au/products/43654799-sun-tails-mermaid-monofin-swim-fin-in-kid-and-adult
store_origin: AU
region: Australia
---

# Superior propulsion & control Patented dual US designs Proudly made in the USA Sun Tails Mermaid Monofin - Swim Fin in Kid and Adult Sizes

**Brand:** sun tails
**Price:** A$121
**Availability:** ✅ In Stock

## Summary

> 🦋 Swim like a mermaid, rule like a pro!

## Quick Answers

- **What is this?** Sun Tails Mermaid Monofin - Swim Fin in Kid and Adult Sizes by sun tails
- **How much does it cost?** A$121 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/43654799-sun-tails-mermaid-monofin-swim-fin-in-kid-and-adult)

## Best For

- sun tails enthusiasts

## Why This Product

- Trusted sun tails brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Propulsion:** Glide through water with superior control and thrust that turns heads at the pool.
- • **Proudly American-Made:** Crafted in the USA with premium materials for quality you can trust and flaunt.
- • **Comfort Meets Durability:** Neoprene boot offers a snug, flexible fit that keeps you swimming longer without fatigue.
- • **Inclusive Sizing for All:** Available in kid and adult sizes, perfect for family swim sessions or solo training.
- • **Patented Performance Power:** Two US patents guarantee cutting-edge design and unmatched swim efficiency.

## Overview

The Sun Tails Mermaid Monofin is a patented, US-made swim fin designed for teens and adults, delivering superior propulsion, control, and comfort through innovative neoprene boots and durable construction. Ideal for swimmers seeking enhanced performance and style in the water.

## Description

desertcart.com : Sun Tails Mermaid Monofin (Pink, Nunui - Teen/Adult Size) : Sports & Outdoors

Review: Nice and comfortable. - Very nice. Daughter is loving them and the neoprene boot is comfortable.
Review: Fun for swimming! Tight for wide feet - Really like the rigidity of the fin. It’s not hard like glass but just ever so slightly flexible. One can really propel oneself through the water after perfecting one’s “flipper technique.” The sock part is fraying after just a few days of swimming, although neoprene doesn’t hem like other fabrics. We went with the Keiki size for my tween (sz 6 shoe US) but the sock is difficult to put on once her feet are wet, perhaps due to wide feet and being on the upper end of the size scale. We have no problem cinching the fin into the sock with the Velcro and the straps work quite well for us. Ideally there would be a medium sock offered with the Keiki fin. But I’ll exchange the current one under warranty when it rips completely.

## Features

- Our monofin provides superior comfort, durability, control, and propulsion
- New monofin designs to increase durability, comfort, and control
- Superior quality, function, and design have earned our monofins two patents (US Patents 9561401 and 9925416)
- Made in the USA
- Designed for swimming with provide great propulsion, control, comfort, and safety

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01IC6FLAM |
| Best Sellers Rank | #42,644 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #31 in Swimming Training Fins |
| Brand Name | Sun Tails |
| Customer Reviews | 4.3 4.3 out of 5 stars (394) |
| Date First Available | April 9, 2018 |
| Item Dimensions LxWxH | 24 x 21 x 0.04 inches |
| Item Package Dimensions L x W x H | 24 x 21 x 1.5 inches |
| Manufacturer | Sun Tail Mermaid |
| Package Weight | 1.13 Kilograms |
| Part Number | unknown |
| Product Dimensions | 24"L x 21"W |
| Size | Nunui - Teen/Adult Size |
| Suggested Users | teen-boys |
| UPC | 644287331114 |

## Product Details

- **Brand:** Sun Tails
- **Color:** Pink
- **Fit Type:** Regular
- **Material:** Neoprene
- **Sport:** Swimming

## Images

![Sun Tails Mermaid Monofin - Swim Fin in Kid and Adult Sizes - Image 1](https://m.media-amazon.com/images/I/71OKIEFi63L.jpg)
![Sun Tails Mermaid Monofin - Swim Fin in Kid and Adult Sizes - Image 2](https://m.media-amazon.com/images/I/81Pe-vFKDxL.jpg)
![Sun Tails Mermaid Monofin - Swim Fin in Kid and Adult Sizes - Image 3](https://m.media-amazon.com/images/I/81idldffnaL.jpg)
![Sun Tails Mermaid Monofin - Swim Fin in Kid and Adult Sizes - Image 4](https://m.media-amazon.com/images/I/81lqZFvobSL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice and comfortable.
*by S***M on July 16, 2025*

Very nice. Daughter is loving them and the neoprene boot is comfortable.

### ⭐⭐⭐⭐ Fun for swimming! Tight for wide feet
*by R***R on July 10, 2020*

Really like the rigidity of the fin. It’s not hard like glass but just ever so slightly flexible. One can really propel oneself through the water after perfecting one’s “flipper technique.” The sock part is fraying after just a few days of swimming, although neoprene doesn’t hem like other fabrics. We went with the Keiki size for my tween (sz 6 shoe US) but the sock is difficult to put on once her feet are wet, perhaps due to wide feet and being on the upper end of the size scale. We have no problem cinching the fin into the sock with the Velcro and the straps work quite well for us. Ideally there would be a medium sock offered with the Keiki fin. But I’ll exchange the current one under warranty when it rips completely.

### ⭐⭐⭐⭐⭐ Fins
*by A***L on May 6, 2025*

Loved them so much!! I do wish I had gotten a smaller size, I wear a woman’s 7 and they are a bit big. The adult size is what I ordered. I should have gotten a child size. Overall they were great and very fast shipping. Have used them in the pool and no rips or tear’s.

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**Shop now:** [https://www.desertcart.com.au/products/43654799-sun-tails-mermaid-monofin-swim-fin-in-kid-and-adult](https://www.desertcart.com.au/products/43654799-sun-tails-mermaid-monofin-swim-fin-in-kid-and-adult)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-01*