Brynn's Celtic Green Mermaid Tail

4.8 66 Reviews
Price Starts at $44.95

Machine Washable

Walkable Safety Features

Breathable, Fade-Resistant Fabric

100% Swimmable

Choose matching accessories to build your complete mermaid outfit. Reg. $54.95-$64.95, now starting at $44.95! 

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Price Starts at $44.95


Brynn's Celtic Green Mermaid Tail

Get our most realistic mermaid design yet!

Celtic green is shimmering, soothing, lush, and traditional, but also bubbly and effervescent. Small beadlet scales of eye-popping color come in beautiful blends of green that are calming, comforting, and realistic. The corresponding tailfin has streaks and bubbles of color, with an almost translucent appearance. The fabric is durable, made of a high quality blend that is 80% polyester and 20% spandex.

Pair this tail with our Mermaid Clamshell Bikini Top for an authentic Little Mermaid look!

Made from a poly and spandex blend, the tail fabric is soft, comfortable and durable. It can be machine washed in a gentle cycle in cool water. Please note: Exposure to high temperatures (such as in hot tubs, dryers, etc.) can cause the spandex in the fabric to lose it's elasticity and become "stretched out". This is common with all spandex fabrics--we just like you to know ahead of time. ;)

Learn more about Mermaiden Brynn, play games and more at!

How to Put on a Mermaid Tail

Genuine Fin Fun


Most Comfortable Monofin on the Market

Light, Flexible and Unbreakable

Fast, Powerful Propulsion

Fits Any Size Feet

30 Day Satisfaction Guarantee

Our exclusive monofin is the most comfortable, safe, and realistic mermaid monofin in the world. You will experience a new level of mermaid power as you glide through the water with the best mermaid monofin available! With our patented design and buoyant neoprene cover, there is no other monofin like it. It fits so naturally you can hardly see your feet and ankles inside, which helps you look like a REAL mermaid! Although our monofin fits comfortably and securely, you can also remove it quickly and easily with a light tug. Watch the video below to see the Fin Fun monofin in action!

Tail Protectors

Do you have an older pool surface that is rougher than most? Even when you're careful, the tips of your tail may wear through and develop holes when rubbed against a rough pool surface. Our Tail Protector includes highly technologically advanced, clear, waterproof protection tape that helps you "Love" your tail even longer!

Watch the videos below for more information on Monofins and Tail Protectors!

How To Protect Your Mermaid Tail

Watch how easy it is to kick off a Fin Fun Monofin & Tail -- no straps!

For Safety Information, click here!



Fin Fun you made my dream come true. When people see me on the beach there dreams come true and I feel the happiness in little girls hearts. When I first got my tail I almost cried I was so happy my dream came true. And now I will be getting my second tail this X-mas. When I see little girls smile when they see me it makes them believe more and more and that warms my heart. I finished one dream I have many more to go I just have to look in my heart........ and think I accomplished the impossible the impossible is ... prefect. Thank you Fin Fun you did not only made my dreams come true but you made people, children's, and adults dreams come true thank you so much (: . AND MERRY X-MAS!

My Tail


I love my Tail!!!! I have to thank you Fin Fun!!! When I swim people walk by and take a long look at my tail and ask me where I got it and I tell them from Fin Fun!!! Little girls especially love to come up to me and admire my tail and it leaves me with a good feeling when I see the smile on their faces as they walk by.



As soon as i saw this tail i was in love with it :) I was going to get the Ariel Green but when i saw this my jaw dropped i'm so happy there are new colors Thank you :3

This is totally Swishy!


All the other mer-girls are in love with my tail! The scales are so BEAUTIFUL! I am so ordering from you guys again! Thank you Fin Fun!

Amazing! The pictures don't do it justice!


I got the Celtic Green tail for Christmas, and I literally screamed with joy when I got it! I am completely in love and wish I could wear it all the time. The mono fin is super comfortable, and the scales are so realistic. I would advise anyone to purchase this tail . Can't wait to visit the pool! :-)

So Amazing!!!


I recentley wore my celtic green tail to a pool with my friend and a lot of little girls came up to me saying how much my tail looks like Ariel , people kept smiling and it made me really happy! I have gotten tails from other company's before, but I have to say that fin fun is the best there is :)



I absolutely love it i can finally prove to my friends that i am a mermaid



Omg I love this me friend has the blue one and a maching swim suit but were is the swim suit that machetes. This one ? I fell really disappointed because I want the tail and the swim suit plz make a mac thing one fin fun

I'd rather get another color

by -

Lots of people ?? Love this color and have different opinions honestly this tail is beautiful and stunning but I'd rather stick to the othe beautiful tails



Amazing Can't Wait To Prove How I Am A Mermaid.



I recently wore my celtic green tail at a pool and little girls kept coming up to me saying how much my tail looks like Ariel! The scales are super realistic and just beautiful! Thank you SOOOOO much finfun! you are increadible :)

Celtic Green


I've just purchased a Celtic Green mermaid tail for my birthday with a monofin. I love it so much! Its the best birthday gift I've ever recieved and I garantee lots of other girls who love to swim or loves mermaids will really like these tails. The tail is much more colorful and vibrant in person, and in the water! The monofin is very comfy and tightly fit. I could spend hours swimming with this tail on. I even go in the bathtub with my tail on! Haha. The monofin? It makes your tail stretch and not flop, and even makes me swim faster! The new monofins are much more strong, and I like that.

The excellence of the tail


OMG. The tail is so stunning, the picture doesn't do it justice at all. I received it for my bday. Best present ever!

The Key to a Magical Summer Holiday


I usually fly out to Greece for the summer hols to this island called Zakynthos, and where my villa is there is the most beautiful port ever, the perfect setting for a mermaid sighting. I discovered FinFun Mermaid quite by chance only recently and begged and begged my mum to get one. Anyway, it finally came all the way from the USA and when it arrived I was so happy! The tail is beautiful, the colour I think is the most natural tail colour, it is comfortable, the Monofin fits perfectly (even with my EU size 42 feet) and is comfortable to swim in. It makes you go faster and, even though I am old enough to know it's not real, the feeling of looking down at your legs and seeing in place of them a gorgeous green tail is amazing! Can't wait to go out to Zante in two months' time to try my AMAZING tail out there! Thanks FinFun, you have ensured my eight weeks this summer will be THE BEST! Can't say how much I love my tail, and the people who made it possible!

Overall Amazing!


I am a mother of three daughters. Fifteen, twelve, and four. My twelve year old daughter, Brooke loves mermaids! She watches mermaid TV shows and swims with her legs together like a real mermaid! But, when she asked for a mermaid tail, I said no. I didn't think it was worth the money, and I was worried she would spend all of her own money and lose interest soon after. She begged for over 3 months and even wrote me a letter about why she deserves one before I finally gave in. We split the price and ordered her a Celtic Green mermaid tail. Once it came in the mail, I couldn't get her to take off! I always tell her to get away from the iPhone and TV and go outside, and now she is out every day swimming in her mermaid tail in our pool! She has been in a great mood lately and says thank you every time she puts it on! All of her friends ask her where she got it, too! It looks so realistic and is way better than i was expecting! We even ordered one for my other daughters too! I could't be happier that I bought my daughter a FinFun Mermaid tail! Thank you for making such a great product! :)

Blew my mind!


My 12 year old daughter has always loved mermaids and when she first told me she wanted a mermaid tail, I was completely against it! I told her I wouldn't buy it for her. She volunteered to buy it herself, but I didn't want her to waste her money on it. After begging and raising some money, I agreed to split the price with her. When her mermaid tail came, I was AMAZED at how great it was! It was absolutely beautiful and she wore it all the time. It's stays pretty warm all year around, and she was always in the pool with her tail on. She said her dreams came true and I honestly was considering buying one for myself! They are so stunning and my daughter can swim so quickly and elegantly in it. At first, I was worried that she would have trouble swimming, but she says it is super easy and fun! She has been thanking me for the past 2 weeks now, and I couldn't be more glad that I made her dreams come true!

The key to a magical summer holiday


I spend every summer in Zakynthos, Greece and where my house is there' stairs beautiful bay, so I thought it would be great to get a tail and swim in the sea there. I got my tail a few days ago and it is really comfortable, easy to swim in and the colour of Celtic Green is the most natural looking, I think. I can't wait to try it out this summer! Thank you so much Fin Fun, even though I am old enough to know I am not a mermaid, when I look down and see in place of my legs a beautiful green tail I feel so magical!


by -

I got my Celtic Green tail yesterday and i love it! The color is just like Ariel from the little mermaid. It is beautiful and i would recommend it to anyone!!!!!!!!!!

Best gift!


If you are looking for a great gift, come here! After having 3 yrs of my tail it is faded but it is still awesome!

So amazing


So amazing i'm only 10 and I got it xmas so far I'v been warring it out of water when the pool was not up now it is up so i'v been warring it nonstop it is amazing!

I'm sooo happy!

by -

First off, the tail was delivered in 3 days! I'm located in Ontario so I was very impressed by the speedy delivery. The product itself is amazing, prices are ridiculously cheap considering how awesome your tail are and I'm definitely planning on purchasing from you guys again, thanks for making a lifelong dream come true :)



I LOVE THIS TAIL!!!!!!!!!!! I got it for my 12th b-day and when it came in i was soooo happy and excited that i opend the box right in the middel of the room!!!! I tell my friends about and they want to get one i told them that u have FINTASTIC TAILS and they are actually somthin u can get as a kid cuz they are so little money but HIGH QUALLITY {WELL MADE} Agian i LOVE my tail for many rasons like i feel like Ariel and i feel like a real mermaid!!!!!!!!



I'm 12 and I just got this tail and its SO PRETTY. I'm gonna go swimming today! THANKS FIN FUN!!


by -

I'm a teenage but me and my cousin love FinFun's tails. As kids we would pretend to be mermaids, and now we don't have to pretend anymore. My tail is beautiful and looks so realistic in the water. Just be careful where you swim. I went to Florida a few months after I had my tail and returned home with a small hole and scratches on my tail from the waves and current being very rough. But I recommend swimming in a nice calm lake is just the best, because the natural water can't really harm your tail. Over all I love it and I will be buying from FinFun again in my future.

LOVE IT!!!!!!!!!!!!!


I got this tail for my birthday last week and I couldn't be happier with it!!! It is comfortable, durable, realistic, easy to swim in, and so gorgeous!! I took it on our vacation to Mexico and swam in it every day. So far, it has gotten no holes and hasn't faded at all, it's still good as new. I also love the way the monofin moves in the water, it looks very realistic and graceful and i feel like a real mermaid when I have it on! Thank you, Fin Fun, for making my dream come true!!!