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Kalenji Run 300, Running Soles

Sale price: $8.00 Regular price: $12.99

The 5 mm-thick sole is made of absorbent foam for extra cushioning.

Color: Select a color
Size: Select a size
Sale price: $8.00 Regular price: $12.99

Free shipping over $35

Final Sale: No returns or exchanges

Free returns

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8329319

Product Features

A photo of the Kalenji Run 300, Running Soles in use

Kalenji Run 300, Running Soles | Our team of running enthusiasts designed this insole for runners seeking greater cushioning when jogging

The 5 mm-thick sole is made of absorbent foam for extra cushioning.


The material of Run 300 Soles and Poron inserts give added cushioning


The foam in the Run 300 Sole absorbs perspiration.

User comfort

The preformed Run 300 sole gives added comfort.

Product Customer Reviews

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2397 Reviews
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Kalenji Run 300, Running Soles,light grey
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Great value/Quality!!

Just bought a pair and they are great Good value /Quality!!

better than original insoles

I bought these to replace the memory foam insoles in a pair of sketchers I had. Have to say, they transformed the trainers, sooo much more comfortable in my opinion.

Does the job well

Son 13 - experienced squash player - needed insole replacement. Told me there are perfect, no discomfort. Just works. For price great. Compared it to original insole of squash shoe - same thickness. Would buy again. For the size, didn’t need trimming. 4 stars as don’t longevity yet.



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Not suitable for running shoes

I believe this insoles is not suitable for running shoes. Size is not exact, need to cut it by scissors in-order to get it fitted. Didn’t serve my need.

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Foot beds

Great product. Good price

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Foot beds

Work really well. Very good price

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Replacing Hoka ATR Challenger 5 Wide fit insoles

As Hoka do not supply any parts a such, I was disappointed that the insoles in my otherwise excellent ATR Challenger 5 wide fit were starting to degrade after 300 miles or so and lose their structural integrity. In short working back towards my heel on one foot which will cause blisters etc if it gets any further. The shoes are still in great condition, very little wear and luckily Hoka cleverness is all in the shoe and not much in the insole. These are a very good replacement, so far very comfortable and slightly more firm than the originals which bodes well for rigidity. There was no need to trim anywhere so far, so good and the largest size was fine in my 13.5 UK shoe. Hoka do size up slightly smaller in my experience. All good in the hood.

Run 300 soles

2nd pair purchased, extend life and comfort of shoes. Would definitely recommend

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replacement insole

Excellent quality for the price. I'd go as far as saying better than the ones they replaced!

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They don't fit inside the trainer

The trainer and the insole are the same make, which made it disappointing that the size 10.5 insole was to big for the 10.5 trainer. I've trimmed them with scissors to make them fit, but it seems a waste.

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Very good

Had to cut them to the size but well worth the price. Extremely comfortable.

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Didnt fit

I had high expectations for those but they didn't fit size 9 so I will return once shops reopen.

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Hi Jonathan-Pierre,

We are sorry to hear this. Thanks for getting back to us, we will look into this to improve our sizing. Please, visit our web to keep inform on re opening of our branches. We hope to be open soon to help you find the right insole and size to make your sports activities more pleasant.



UK Running Leader

Run 300 insoles

Comfortable but didnt stop the pain in the ball of the foot, need to think of other ones.

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Excellent products!

I am happy with those products, of course I recommend to everyone. Thanks.

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Additional Product Information


Outer sole of

  • 100% Polyurethane


  • 100% Polyester cationic

Sole type




Cut to size

To ensure your new soles fit your shoe correctly, use the original soles as a guide when cutting them to size.


5 mm

Shoe size

US W 6.5/7.5 (EU 37/38) US W 8/9 (EU 39/40) US M 8/9 (EU 41/42) US M 9.5/10.5 (EU 42.5/44) US M 11.5/12 (EU 45/46) US M 12.5/13.5 (EU 46.5/48)



Storage instructions

For effective drying (hygiene), remove the sole after use. Hand wash only. Store in a dry place not exposed to light.

Care instructions

Hand wash only.

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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  2. State-of-the-art production processes

    minimize manufacturing costs

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    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual