Scarlet's Rio Red Mermaid Tail

4.9 37 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


Scarlet's Rio Red Mermaid Tail

Want to turn every head your way?

Scarlet's Rio Red mermaid tail offers vibrant, fiery, eye-catching, scorching, and sizzling excitement. Scales of hot lava range in hue from deep red to yellow-ish gold. The tail-fin is swirly, whimsical, and ribbed, with patches of contrasting color, detail and variety. This high-quality material has a comfortable feel, is durable, breathable and beautiful. It is made from 80% polyester and 20% spandex and can be machine washed 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 normal for all spandex fabrics (all mermaid tails)--we just like to be upfront about it.

Find out more about the mysterious Mermaiden Scarlet, 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!

Ratings & Reviews

37 reviews


best Tail Ever


Prettiest tail ever, the detailed red scales look like a ruby, red is my favorite color, even the pattern is pretty, BEST TAIL EVER

I love this tail!


I love this tail, I (hopefully)will be getting this for Christmas, I love the vibrancy and realisticness of this tail, the colour is amazing :) I am quite an "gothic" teenager but I think that this tail looks incredible. So anyone who likes vibrant colours I would recommend this tail to :)



I just ordered this tail Friday night, and got it today, Sundays don't count, so that's two days shipping! Really quick, and I got the cheapest option for tail plus mono fin! The tail overall is beautiful, it's a bit tight, but it's probably supposed to be like that. At first I thought I ordered too small (xs) but it's perfect! It doesn't feel tight, it's just a bit hard to get over the top half of my legs, but that's probably because I bunch up the material. Out of all the tails, I got this one because the fluke blends in the most with the rest of it. The monofin is also huge! It's almost twice as big as the one in my old tail, it's a bit floppy so it may not propel you a lot, but the floppies makes it more realistic, probably more so in the water. There's a lot of detail, and probably one of the most realistic material tails out there. It's a great starter tail, and I'm planning on swimming with it tonight, because I already have swum in tails before, so I know how. It's great for any age! I'm 14 (Fifteen in April.) and I ordered one with my Christmas money from my uncle. Keep sewing Finfun! And thanks for the poster by the way!

Best friends perfect tail


I showed this to my friend and she loved it! I think this might be the one for her! ??

So Amazing


me and my friend have other tails but we decided this would be the tail we would both get so we could imitate the show h20 (the girls had all orange tails so instead of orange our normal color will be red)

Awsome red tail!!!


Hello FinFun!!! Thank you for making these tails I love them! For my birthday I want the artic blue but I have heard so many good things about you guys that afterwards I get that I want to get this tail- Rio Red. My sister says red is "not my color" But anyone can dream as you taught so many little ( And Big ) girls!!! I never knew anyone did this until a month ago. I stumbled across a wonderful site that EVERYONE Should know about!!! Thanks for making my dreams come true!! -The New Mermaid!



just purchased it and I love it Soooo much



I bought this for my 18th birthday(4-30). I've dreamed my whole life of being a real life mermaid and fin fun mermaids have made that come true. I LOVE MY TAIL. I will recommend this to everyone and will buy more in the future. REMEMBER YOUNG MERS, DREAMS CAN COME TRUE!




the tail


this tail is amazing if your goooing to get a tail get this one


by -

This tail is soooooooooooooooooooooooooooooooooooooooooooooooooooooo cute !!! ;p

looooooovvvee it!


I got the tail today and I think it's sooooo beautiful and such an amazing experience!! Thankyou so much fun fun and you can count on me to be buying more of your awesome stuff!!

Great! But...


The tails are great! My friend and I got ours and we love love love them. But it would be nice if they didn't scratch up so much on the bottom of the pool and on the side. That is my only concern otherwise its great!



My friend has this tail and she let me try it on. The tail when dry made the colors look dull. But when I got in the water, it was very colorful. Each little scale was like a ruby. I recommend this tail for anyone that likes red, wants to stand out, or wants a realistic mermaid tail.

This is an awesome tail!


I ?? It the tail is gorgeous and fierce like me!



Omg I love it so much im finally a mermaid

best one i got!


i have had 3 fin fun tails and this one was the best! great detail and color!

Dreams really do come true!


Thanks to Fin Fun, I finally feel like a true mermaid at heart!



i absolutely adore this mermaid tail, i got t for my birthday and i swam in it so much on the first day i now look like a tomato due to sunburn! the tail has an adorable and fiery color it is the best thing i have ever gotten as a present and i will recommend it to all of my friends . thank you so much fin fun for making my mermaid dreams come true!!! :)



I love the look of this tail. Its even pettier in person! I accidentally ordered a size too big, but it should fit fine by next summer. Its soft and beautiful and I've been wearing it all night. Homework is sooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo much better in a tail!



Amazing colors and beautiful design I am BREATHLES



I really love the new colour, the dark red matches with black, and a black top to my tail is exactly what I wanted, I was looking on the black tail, but it was to light to me (in water pics) so I decided this tail instead! I really love that red shade this tail haves! Perfect!

I love this tail!


I got my tail earlier (before Christmas) but my sisters just got ones on Christmas, so we all took them to an indoor pool (called first to make sure we could swim- response was 'that's a thing? sure swim ahead). when we got to the pool, all the little kids followed us around. I referred your business to a bunch of different parents. My only complaint is that it got sort of scuffed up.

Best Tail in The World


Me and my friend got matching tails and we loved them so much. Keep sewing!!!!!!

My Dreams came true


Bought it loved it enough said.