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Trainfins Long Swimming Fins
Want to work on your legs and swim quicker? These long swim fins provide excellent propulsion. Ideal for sweeping and less frequent movements.
Free shipping over $35
See our return rules
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features
Propulsion
Feel yourself move a lot quicker through the water because of the short blade
Muscular workout
Work on your leg muscles at a good intensity with the short blade
Product Customer Reviews
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Really like this product and would recommend it to a friend
It does the job and is very comfortable.
This swim fins is very good for my boy. It is fit perfectly.
These are great! Bought them for my 6yr old for Christmas. She loves them
Good fins, comfortable.
great fins, great service - recommended to use decathalon always!
The fit is narrow for my feet. I used this product once as it was so uncomfortable so can’t comment on muscular workout.
Really impressed with these fins. Will be buying again as my daughter grows.
My grandson has outgrown his training fins. Extra Christmas present.
Bought this for my sons swimming, he have been using it for a while and it’s good and he is happy with it.
Great fitting fins
Bought for my daughter, fit perfectly!
Good product ideal for teaching finning skills
The fins are very comfortable to wear. The rubber is soft and follow my feet, help a lot to build up thigh muscles.
Good
Size Guide
Additional Product Information
Composition
Fin blade: 100.0% Styrene Ethylene Butadiene Styrene ; Fin shoe: 100.0% Styrene Ethylene Butadiene Styrene
What are swim fins for?
A fin are a piece of swimming training equipment to work the lower body. You can simultaneously work on your heart rate and lower-body strength training (thighs, glutes, calves, core stability).
Fin length
Long Fins - Kids 12.5C/13C: 12.6”- Kids 1/2: 14.2”- Kids 2.5/3.5: 14.2”- Kids 4/5; W 5.5/6.5: 15.7”- Kids 6/6.5; W 7.5/8: 15.7”- W 9/9.5; M 7.5/8: 17.3”- W 10.5/11; M 9/9.5: 17.3”- M 10.5/11.5: 18.9”- M 12/13: 18.9”Short blade guarantees a good kick frequency and a good cardio workout. Movements are very close to “natural” swimming movements. The long blade guarantees a more sweeping kick and a stronger muscle workout.
Fin stiffness
Semi-rigid finsThe stiffer a blade is, the more important muscular exertion will be.The more flexible a blade is, the more efficient and sweeping the kick will be. Your muscular energy will generate the type of effort you’re looking for (cardiovascular or muscular effort)
Footwear
Full footFin foot pockets hold the foot in place when kicking (important for an efficient kick). The open foot pocket means the ankle can move more freelyThe closed foot pocket supports the foot in its natural position
Your 1st time using a fin?
Be careful not to start too quickly! The use of the fins should progressively increase to let the legs and feet adjust and get stronger and to avoid hurting the Achilles tendon.
Storage instructions
Store swim fins in a dry place.
Origin
Imported
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
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Research and development
delivers high-quality cost-effective products
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State-of-the-art production processes
minimize manufacturing costs
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Optimized supply chain
reduces retail prices
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Minimal retail footprint
lowers overhead and indirect costs
Trainfins Long Swimming Fins
Your location: City, ST
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
| Weight Thresholds | Shipping within California | Shipping outside of California |
|---|---|---|
| > 9 lbs | $20.00 | $25.00 |
| > 30 lbs | $50.00 | $65.00 |
| > 100 lbs | $100.00 | $125.00 |
| > 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.