Product Colors and Sizes

  • Black Friday product
  • New Deal product
  • Cyber Monday product
  • Clearance product
  • Deal product
  • Best Seller product
  • Ecodesign product
  • New product
  • Staff Pick product
  • In The News product
  • Innovation product
  • product

Topfins 900 Rigid Long Swimming Fins

Sale price: $24.99 Regular price:

Long and rigid swim fins, the perfect compromise between speed, muscle workout and cardio training. This fin allows you to build up muscle strength and endurance.

Color: Select a color
Size: Select a size
Size Guide
Sale price: $24.99 Regular price:

Free shipping over $49

See our return rules

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8548095

Product Videos

Product Features

A photo of the Topfins 900 Rigid Long Swimming Fins in use

Topfins 900 Rigid Long Swimming Fins | Designed for advanced swimmers wanting to work the abdominal muscles, thighs and whole lower body.

Long and rigid swim fins, the perfect compromise between speed, muscle workout and cardio training. This fin allows you to build up muscle strength and endurance.


The best propulsion in the Nabaiji range of swim fins.

Muscular workout

The rigid structure of the fins provide an intense muscle workout.

Cardiovascular workout

Fins enabling a good kicking frequency and cardiovascular workout


The open foot pocket provides a good hold and great freedom of movement.

Questions & Answers

Product Customer Reviews

Skip to reviews
695 Reviews
Write a Review 

Topfins 900 Rigid Long Swimming Fins,black
Filtered by reviews Loading reviews…

Got these for my son (9 yrs). The sizes come in ranges, so he's either at the top of the smaller or the bottom of the larger applicable range. You'll need to know your kid's size in a European fit. As a fail-safe, I get him to try on everything. I got the next one up as he's likely to get two summers' worth of use. He's used them & he loves them. They give a good amount of 'thrust' (?) per kick so we can swim together. Also, the fins have some flexibility, but not too much, so walking (if he has to) isn't too awkward - probably better to put them on in the water. Value for money is excellent and the quality is high.

icon-circle-checkmark verified purchase
Good for practise and swim in open waters !

I likre this product both 2nd time .

icon-circle-checkmark verified purchase

Hi Chris,

We appreciate your feedback in regards to these swimming fins. Do you have any specific feedback that will make this a 5-star product? Thanks!

Good leg workout

Really fast for a wee fin

icon-circle-checkmark verified purchase
Love these fins

Excellent swim training aids, make me feel turbo charged

icon-circle-checkmark verified purchase
fins was good

Delivery is very fast thanks decathlon

I am a regular swimmer at Talkatora stadium and look forward to using more swimming accessories of Decathlon.

icon-circle-checkmark verified purchase
Best Quality

Very useful

Small Size

Size is small

Hello Abhinav,

Thank you for rating the Swimming Fins.

Your feedback is important for us to improve our products year after year.

I apologize for the bad experience that you have faced with the Swimming Fins. Ideally, all our products have a 2 years warranty, which means that we stand by the quality of our products. We have a quality check on our products before sending them to the stores.

However, I see that you are not happy with the piece. For this, I invite you to any of our Decathlon stores to have the Swimming Fins checked by our Sport advisors and provide you the best solution.

I stay available in case you have any other queries. Have a good day.




icon-circle-checkmark verified purchase

the fins are overall good but they need to be a little more flexible since cramps are very common due to the rigidity of the footpiece

Good product at a reasonable price point

icon-circle-checkmark verified purchase
Kualiti terbaik untuk pemula

Harga berpatutan dengan kualiti yang di berikan.. Cuma pastikan saiz yang betul untuk keselesaan penggunaan.

icon-circle-checkmark verified purchase

Hai Shahrul, terima kasih atas masa yang diberikan untuk memberi maklum balas dan penilaian kepada kami. Kami sangat gembira kerana anda berpuas hati dengan produk yang kami tawarkan. Untuk pengetahuan anda, faedah keahlian kami adalah 2 tahun jaminan dan 365 hari pemulangan dan pertukaran. Jika selepas pembelian saiz berkenaan tidak bersesuaian, anda boleh membuat penukaran di mana-mana premis Decathlon yang berdekatan dengan anda. Kesetiaan anda bersama kami amatlah kami hargai. Terima kasih kerana membeli-belah bersama kami. Jaga diri!

Syahirah Jizan

Good value fins

Nice design. Color scheme and pricing is very reasonable

icon-circle-checkmark verified purchase

Dear Wong ,

Warmest Greetings from Decathlon!

Thank you for taking the time to leave us such a great compliment. I personally happy of your 5-Star feedback on our product rating in your comments and we're happy to hear that your purchase has made you happy and worthy valuable for your

daily uses.

I would like to inform you that your feedback of the product also will be forwarded and reflected to other sport lover too. Please let us know if there is anything else we can improve on in the future. Thank you once again for your time and we hope to serve you again soon!

Your support is highly appreciated.

Thank you for choosing Decathlon!

Muhammad Hafiz
My swimming Fins

Love it

icon-circle-checkmark verified purchase

Dear Mr Mikey, thank you for your time in leaving us with a 5-Star rating on our product. We are glad that we managed to delight you with the standards of our product. We really appreciate your loyalty with Decathlon. Please let us know if there is anything else we can improve on in the future. Thank you once again for your time and we hope to serve you again soon!

Nik Aini

A bit tight for wide foot people - hopefully will expand a little bit over time.

icon-circle-checkmark verified purchase

Hi Kanghao,

Thank you for taking the time to write us a review regarding our product.

In Decathlon, we believe that to get this kind of information from our users is the best way to improve what we are doing. We are glad that you are satisfied with our products :)

Plus, the new Decathlon app has been launched and you can now purchase all your favourite sports goods with just a few clicks on your smartphone! Yes, it's now available both in the App store and Google Play Store! Download now and happy shopping!

Do check out more varieties of our products at, and we hope to be able to serve you again in our stores soon! :)

Stay Healthy, Be Sporty!

Let's play sports!!

'Afi Raimi

Sports Advisor

Skip to reviews

Size Guide

Size Guide Visual

Additional Product Information


Fin blade: 91.0% Styrene Ethylene Butadiene Styrene, 9.0% Polypropylene ; Fin shoe: 100.0% Styrene Ethylene Butadiene Styrene

What are swim fins for?

A fin is a piece of swimming training equipment to work the lower body. Swim fins are ideal for swimming faster, for longer. You can simultaneously work on your heart rate and muscle building on the lower body (thighs, glutes and calves as well as core stability)

Fin length

LONG FINS - US W 6.5/8 (EU 37/39): 16.1”- US M 7.5/9 (EU 40/42): 16.5”- US M 9.5/11.5 (EU 43/45): 17.7”Long-blade fins maintain greater muscular exertion and ensure a more sweeping kick than short-blade fins.


RIGID FINThe rigid fin design is guaranteed via orange plastic inserts.The more rigid the blade, the greater the muscle workout, the softer the blade, the fuller and more effective the stroke. It is the resistance of the blade that will generate the type of exercise desired (cardiovascular or muscle workout).

Foot pocket

OPEN FOOT POCKETThe foot pocket of a fin holds the foot in place when kicking (important for an efficient kick) so take the time to try on the fins before buying. It is important to check that the foot fits well in the foot pocket and the uncovered area (to prevent water from entering). It is important to choose the right size.There are 2 types of foot pockets: full foot and open heel.

Storage instructions

Store in a dry well-ventilated place.



Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual

Please Sign In to Post Your Question

In order to notify you about the answer it is required to Sign In.

Sign In