---
product_id: 155483117
title: "XonyiCos Mermaid Tail with Monofin Bikini Set Swimmable Costumes Swimsuit for Girls Boys Swimming"
brand: "xonyicos"
price: "247.39 DT"
currency: TND
in_stock: true
reviews_count: 8
category: "Apparel"
url: https://www.desertcart.tn/products/155483117-xonyicos-mermaid-tail-with-monofin-bikini-set-swimmable-costumes-swimsuit
store_origin: TN
region: Tunisia
---

# XonyiCos Mermaid Tail with Monofin Bikini Set Swimmable Costumes Swimsuit for Girls Boys Swimming

**Brand:** xonyicos
**Price:** 247.39 DT
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** XonyiCos Mermaid Tail with Monofin Bikini Set Swimmable Costumes Swimsuit for Girls Boys Swimming by xonyicos
- **How much does it cost?** 247.39 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/155483117-xonyicos-mermaid-tail-with-monofin-bikini-set-swimmable-costumes-swimsuit)

## Best For

- xonyicos enthusiasts

## Why This Product

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

## Description

Important Note: I found some of the customers said the size is too small for the Years recommend in the option,so i very appreciate that you can choose the bigger size or check the detail measurement well before purchasing,thanks! These are 4 pcs Swimming Set, includes the 1 Top, 1 Panties, 1 swimable tails 1 mono fin Size Chart(Please note that 1 cm = 0.39 inch)  110 (3-4 Years) Tail Length (From Waist to the short part end) 36.9 inch, Waist 18.7-26.5 inch, Recommended Age 3-4 Years Old 120 (4-5 Years) Tail Length (From Waist to the short part end) 38.2 inch, Waist 19.5-28 inch, Recommended Age 4-5 Years Old 130 (6-7 Years) Tail Length (From Waist to the short part end) 39.0 inch, Waist 20-30 inch, Recommended Age 6-7 Years Old 140 (8-9 Years) Tail Length (From Waist to the short part end) 40.6 inch, Waist 21-31 inch, Recommended Age 8-9 Years Old  150 (9-10 Years) Tail Length (From Waist to the short part end) 41.6 inch, Waist 23-33 inch, Recommended Age 9-10 Years Old Washing Instructions:  Rinsing after use in cold water,squeezing excess water out gently. Do not twist the fabric,do not use detergent,bleach,or fabric softeners. Do not iron or dry clean,The bright shiny foil finish may fade after wear.all of the sparkly foil will come off if you run it through a washing machine!  Monofin information:  Comfortable and durable short blade swim fin. Great for Training and Open Water swims. Flippers use a soft foot pocket, and mid-sized blade with three channels for optimal movement of water during the kicking cycle. Features: 100% New and high quality. Easy to kick for extended snorkeling time. Lightweight, efficient and economical Rugged, durable construction Good thrust in an economical fin Channel Thrust: longitudinal inserts allow a controlled deformation of the fin blade while kicking. Specification: Material: TPR+PP

## Features

- Package Include 4 pcs ( Top, Mermaid Tail,Panties and Monofin )
- Important Note: The Years is only for reference,and i found some of the customers said the size is too small for the Years recommend in the option,so i very appreciate that you can choose the bigger size or check the detail measurement well before purchasing,thanks!
- 110 (3-4 Years) ; 120 (4-5 Years) ; 130 (6-7 Years) ; 140 (8-9 Years) ; 150 (9-10 Years)
- Warm Tip:Machine Wash on cool. No dryer. No bleach.no hard play on sand.
- Dear Customers,if there are any problems with the order,please feel free to contact me,then i can offer free replacement or full refund you directly.

## Images

![XonyiCos Mermaid Tail with Monofin Bikini Set Swimmable Costumes Swimsuit for Girls Boys Swimming - Image 1](https://images-na.ssl-images-amazon.com/images/I/51-xUWNfWYL.jpg)
![XonyiCos Mermaid Tail with Monofin Bikini Set Swimmable Costumes Swimsuit for Girls Boys Swimming - Image 2](https://images-na.ssl-images-amazon.com/images/I/51RxcO5eKcL.jpg)
![XonyiCos Mermaid Tail with Monofin Bikini Set Swimmable Costumes Swimsuit for Girls Boys Swimming - Image 3](https://images-na.ssl-images-amazon.com/images/I/41sF79YOGeL.jpg)
![XonyiCos Mermaid Tail with Monofin Bikini Set Swimmable Costumes Swimsuit for Girls Boys Swimming - Image 4](https://images-na.ssl-images-amazon.com/images/I/41wNZBO7YVL.jpg)
![XonyiCos Mermaid Tail with Monofin Bikini Set Swimmable Costumes Swimsuit for Girls Boys Swimming - Image 5](https://images-na.ssl-images-amazon.com/images/I/41LpeoPh2AL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love!
            
*by L***A on May 29, 2018*

I bought a size 10/12 for my 75# 7yo, it fits him snug which makes it easier to swim in.  He used it in the pool for 3hrs straight and only had some minor damge to the tips of the fin on the over suit. Considering this is swimsuit material I'm impressed and pleased that it held up that well to all his energy.  The swim suit portion is definitely small for the size and would not have fit him at all.
  

### ⭐⭐⭐⭐ Just as pictured, good for play
            
*by K***K on July 2, 2019*

Purchased size 6-8 for my 64 lb, tall 8 year old. The fit was as expected, a tiny bit snug, but loosened up with wear.This was purchased for a themed party and knowing this swimsuit would only be worn a couple of times - it’s not the best material or construction, but she was very happy that it looked just like the picture. The flipper/fin is sturdy and well made and held up to all day play. The skirt was long enough for her to pull all the way up to her chest for more coverage. No fabric tears or pulled threads noticed after use.
  

### ⭐ One Star
            
*by L***Y on July 6, 2017*

Ripped day one!
  

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-24*