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Speedo Unisex-Adult Swim Training Fins

4.5 4.5 out of 5 stars 5,311 ratings

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Yellow/Grey
Standard Packaging
Color Red/Grey
Brand Speedo
Material Plastic
Sport Swimming
Fit Type Regular

About this item

  • LONG-LASTING: Lycra Xtra Life fabric lasts 5-10x longer than ordinary spandex by retaining original shape and resisting color fade
  • Latex Free
  • Engineered With The Most Hydrodynamic Features

From the manufacturer

Trialon Fin

Speedo Swim Fins

Kick-start your performance with Speedo’s innovative fins. Created to meet the precise needs of swimmers, each fin is built to increase strength and propulsion, while improving stroke technique and promoting a natural kick.

Trialon Fin

All-Level, All-Condition Training

Enhance your training sessions with these long-blade rubber fins. Made from soft natural rubber for optimal flexibility and comfort, this swim tool can help swimmers at every level improve kicking technique and speed.

  • Long blade provides extra power and force
  • Helps to elongate the kick and improve technique and speed
  • Soft, orthopedic foot pockets for comfortable extended use
  • Great for all levels of training, teaching, and recreation

Trialon Fin Features

Extra Long Length

Long blade provides extra power and force.

Flexible Blade

Tapered blade edge allows for long whip during kick cycle, translating kick effort into speed.

Orthopedic Comfort

Soft, orthopedic foot pocket for comfortable extended use.

kickboard
Long Blade Fin Switchblade Fin Biofuse Fin Short Blade Fin Training Kickboard
Customer Reviews
4.5 out of 5 stars
5,311
4.4 out of 5 stars
1,839
4.4 out of 5 stars
1,064
4.5 out of 5 stars
746
4.7 out of 5 stars
5,506
Rubber Fin - -
Silicone Fin - -
Great for Endurance Sets
Great for Speed Sets -
Pair with Any Speedo Paddles for Added Power
Multiple Sizes Available

Product Description

Enhance your training sessions with these long-blade rubber fins. Made from soft natural rubber for optimal flexibility and comfort, this swim tool can help swimmers at every level improve kicking technique and speed.

See here for additional sizing information:

XXXS | Red | Youth Shoe Size 11-13

XXS | Orange | Youth Shoe Size 1-3

XS | Yellow | Youth Shoe Size 3-4

S | Green | Men's Shoe size 5-6 | Women's Shoe size 6.5-7.5

M | Blue | Men's Shoe size 7-8 | Women's Shoe size 8.5-9.5

L | Grey | Men's Shoe size 8-9 | Women's Shoe size 9.5-10.5

XL | Black | Men's Shoe size 10-11 | Women's Shoe size 11.5-12.5

XXL | Navy | Men's Shoe size 12-13 | Women's Shoe Size 13.5-14.5

Product information

Technical Details

Additional Information

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Customer reviews

4.5 out of 5 stars
4.5 out of 5
5,311 global ratings

Customers say

Customers like the quality, comfort, and versatility of the swim fins. For example, they mention that it holds up and works well, is comfortable in the water, and is perfect for training or beach use. That said, some complain about the durability. Opinions are mixed on fit and weight.

AI-generated from the text of customer reviews

343 customers mention255 positive88 negative

Customers like the quality of the swim fins. For example, they say they're made well, sturdy, and long-lasting. Some mention that the fins are a great training tool and provide good propulsion.

"A good product.Well made.Fit perfectly.Should last." Read more

"...The new pair is longer, better built, heavier. At 78 years old, I have to kick harder but I get more out of the effort...." Read more

"...They provide good propulsion and add very little weight to checked luggage. Very happy with this purchase...." Read more

"...Seeing others noting splitting I can only assume these are poor quality and not my super human strength...." Read more

137 customers mention101 positive36 negative

Customers like the comfort of the swim fins. They say that the heel is soft, so there is no painful rubbing. They also say that they are very good on the feet and allow their toes to move freely. Customers also mention that the flippers fit perfectly and stay on their feet.

"...They do not float! Good resistance and comfortable in the water." Read more

"Once you get the correct size they stay on your feet, are comfortable, and work like a champ...." Read more

"These Fins fit well in length but not in width. They are very uncomfortable, but sizing up helped!" Read more

"...says they stay on when she swims and the rubber on the heel is nice and soft, so no painful rubbing. Good product." Read more

87 customers mention84 positive3 negative

Customers like the versatility of the swim fins. For example, they say it's great for swim work outs, swimming lessons, training, or beach use. They also say it gives a really good workout, and is a pleasure to use while swimming laps. They say the fins are great for pool sessions to work on form and correct swimming techniques. Customers also mention that the fin is very great for sport use, and a great product for swimming in the lake.

"My kick feels stronger which was my objective. I’d been using short fins for year's and read these force you to kick effectively...." Read more

"Great product for swimming in the lake. They fit as expected and are a great exercise for my daughters very low muscle tone in her feet and ankles." Read more

"Perfect for my swimming lessons. Comfortable and easy to handle" Read more

"Pretty simple product but works great. Great for pool sessions to work on form!" Read more

41 customers mention41 positive0 negative

Customers find the swim fins a great purchase for the price. They say the material is quality and the price is right. Customers also mention that the product is perfect for training and is small.

"...] Sizes runs a little small, but other than that, price is right comfortable, small and lightweight...." Read more

"...them as my son is growing out of them they are perfect and good for the money will definitely recommend them" Read more

"...We like the quality. Amazon had them at a good price." Read more

"...They last 1 1/2 years. Buy a new pare. Not too cheap, not too expensive.Just the right size and a nice snug fit...." Read more

25 customers mention25 positive0 negative

Customers like the speed of the swim fins. For example, they say it increases their speed at practice, and it forces them to move their arms faster. They are also happy with the quality and speed of shipping.

"...old was pleased to inform me that these flippers greatly increased her speed at practice and now she’s the second fastest kid in her lane!..." Read more

"Holding up well after one swim season. User loves the added speed with these fins" Read more

"...and it was giving me the speed while swimming freestyle and enhanced my performance...." Read more

"fast shipping, good fins!" Read more

293 customers mention173 positive120 negative

Customers are mixed about the fit of the swim fin. Some mention that they fit as expected, run true to size in men's sizes, and are tight but workable. However, others say that the sizing is not accurate, runs small, and the toe opening is quite tight widthwise.

"A good product.Well made.Fit perfectly.Should last." Read more

"Sizes runs a little small, but other than that, price is right comfortable, small and lightweight...." Read more

"...The new pair is longer, better built, heavier. At 78 years old, I have to kick harder but I get more out of the effort...." Read more

"...While the technical size is accurate, one doesn't typically wear socks in the pool, feet are wet a slippery, AND feet don't swell while swimming,..." Read more

25 customers mention14 positive11 negative

Customers are mixed about the weight of the swim fins. Some mention that they are not too heavy, but not light weight either. Others say that they're easy to wear, but a bit heavy.

"...The new pair is longer, better built, heavier. At 78 years old, I have to kick harder but I get more out of the effort...." Read more

"...They are fairly heavy for fins, possibly due to the large size." Read more

"...They provide good propulsion and add very little weight to checked luggage. Very happy with this purchase...." Read more

"...They seem pretty heavy but no complaints in the water where it matters...." Read more

103 customers mention0 positive103 negative

Customers are not satisfied with the durability of the swim fins. They mention that the top near the toes starts to rip after three months. Some say that the fins develop a tear and break from the edges. They also mention that both fins are ripped and falling apart.

"...They are too small. Toes get smashed. Otherwise they seem to be nice fins." Read more

"...after using them aggressively for a week, they again are beginning to tear at the toes. These will be my last pair...." Read more

"...Yes that is a break in the fin. It started as a crack then quickly broke. I've never seen a broken training fin before...." Read more

"Product worked in the beginning then the fins developed a tear making it unwearable it began to put stress on my toes and making it uncomfortable to..." Read more

Bad sizing! M is the same foot size as S, only the fin part is longer and M toe area is narrower.
3 Stars
Bad sizing! M is the same foot size as S, only the fin part is longer and M toe area is narrower.
I wear 6 1/2- 7 shoes, women's. I ordered the small fins since site said order small. Too short. I then ordered the next size up, M which the fins say 7-8 but the site I think goofed and said 8-9. Both the S and the M foot length is the same (see photos) but the M is actually quite tight widthwise at the toe opening. I have narrow feet! I ended up keeping the too short and not also too tight pair for lack of other sources but my feet don't like them. The heel is very comfortable. The fin part is about an inch or more shorter than the fin part of the M, I would have preferred the longer fin. Also, the fins are rather rigid, I would have preferred more flexible. Okay for pool use, I wouldn't want to use them for scuba diving. Ok probably for snorkeling.
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Top reviews from the United States

Reviewed in the United States on January 14, 2024
Size: XL - Men's size 10-11 | Women's size 12-13Color: Black/GreyProduct Packaging: Standard PackagingVerified Purchase
Reviewed in the United States on August 14, 2023
Size: XXL - Men's Shoe size 12-13 | Women's Shoe Size 13.5-14.5Color: Navy/Grey SIOCProduct Packaging: Frustration Free PackagingVerified Purchase
Reviewed in the United States on November 23, 2023
Size: XL - Men's size 10-11 | Women's size 12-13Color: Black/GreyProduct Packaging: Standard PackagingVerified Purchase
Reviewed in the United States on December 16, 2023
Size: L - Men's Shoe size 8-9 | Women's Shoe size 9.5-10.5Color: White/GreyProduct Packaging: Standard PackagingVerified Purchase
Reviewed in the United States on August 31, 2023
Size: L - Men's Shoe size 8-9 | Women's Shoe size 9.5-10.5Color: White/GreyProduct Packaging: Standard PackagingVerified Purchase
Reviewed in the United States on January 20, 2024
Size: M - Men's Shoe size 7-8 | Women's Shoe size 8.5-9.5Color: Blue/Grey SIOCProduct Packaging: Frustration Free PackagingVerified Purchase
Reviewed in the United States on December 25, 2023
Size: S - Men's Shoe size 5-6 | Women's Shoe size 6.5-7.5Color: Green/GreyProduct Packaging: Standard PackagingVerified Purchase
Reviewed in the United States on March 17, 2024
Size: L - Men's Shoe size 8-9 | Women's Shoe size 9.5-10.5Color: White/GreyProduct Packaging: Standard PackagingVerified Purchase

Top reviews from other countries

Translate all reviews to English
Ron
5.0 out of 5 stars XXL perfect size for me
Reviewed in Canada on February 9, 2024
Size: XXL-Men's Shoesize12-13 |Women's ShoeSize13.5-14.5Color: Navy/GreyProduct Packaging: Standard PackagingVerified Purchase
Michelle Rosete
5.0 out of 5 stars Buen material
Reviewed in Mexico on February 1, 2024
Size: S - Men's Shoe size 5-6 | Women's Shoe size 6.5-7.5Color: Green/GreyProduct Packaging: Standard PackagingVerified Purchase
Christine H
5.0 out of 5 stars Great quality - love Speedo
Reviewed in Canada on December 9, 2023
Size: L - Men's Shoe size 8-9 | Women's Shoe size 9.5-10.5Color: White/GreyProduct Packaging: Standard PackagingVerified Purchase
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Christine H
5.0 out of 5 stars Great quality - love Speedo
Reviewed in Canada on December 9, 2023
No issues - great quality, fit was perfect per the sizing guide, fast shipping!
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Jason Barr
5.0 out of 5 stars True fit
Reviewed in Canada on July 15, 2023
Size: M -Men's Shoe size 7-8 | Women's Shoe size 8.5-9.5Color: Blue/GreyProduct Packaging: Standard PackagingVerified Purchase
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mitsuru S
5.0 out of 5 stars Best
Reviewed in Japan on November 22, 2018
Size: L - Men's Shoe size 8-9 | Women's Shoe size 9.5-10.5Color: White/GreyProduct Packaging: Standard PackagingVerified Purchase