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

Kalenji, Breathable and Seamless Running Bra

Sale price: $5.00 Regular price: $6.99

Breathable running crop top with no shell and seamless design. Support designed for repeated impacts associated with running.

Color: Select a color
Size: Select a size
Size Guide

This product runs small

Sale price: $5.00 Regular price: $6.99

Free shipping over $49

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: 8501391

Product Features

A photo of the Kalenji, Breathable and Seamless Running Bra in use

Kalenji, Breathable and Seamless Running Bra | Designed for running. Suitable for all high-impact sports: horseback riding etc.

Breathable running crop top with no shell and seamless design. Support designed for repeated impacts associated with running.

Chest support

Superior support for high-impact sports reduces bounce by 45%*

Moisture wicking

Fabric wicks away perspiration, ventilated area between the breasts

Irritation reduction

Seamless 1-piece design

Easy to open/close

Slips easily and quickly over the head thanks to its elasticated fabric

Freedom of movement

Racer back that frees up the shoulder blades for maximum freedom of movement.

Questions & Answers

Product Customer Reviews

Skip to reviews
4378 Reviews
Write a Review 

Kalenji, Breathable and Seamless Running Bra,neon coral pink
Filtered by reviews Loading reviews…

Beautiful Leotard, quality material, my daughter love it- All good just a bit small than I expected. Recommend to purchase one size up.

icon-circle-checkmark verified purchase
These are more suited for tweens

The sizing is all wrong. Wished I had read the reviews before getting them.

icon-circle-checkmark verified purchase
Super comfortable!

great support, and I find this fits me better than the white one.

Great Support!

I find the support from this bra is great! very breathable and light and for the most part, pretty comfortable. I just find it fits a little tight around my arms.

Hi Leah! Thank you for a positive review. I will make a note of this to send to the Kalenji brand. Hope to see you again in store :)

Until then,


Great product

Works well, breathable and stylish

love them

very comfortable

very uncomfortable

Bought this product in Egypt, the material quality is really poor; even after several washes it still smells of cheap plastic. It's stiff and rubbed my skin while doing only light workout. It felt like not holding my A-size bust while at the same time squeezing me chest... All in all very unpleasant experience wearing this product. One star because at least I did not loose a lot of money on it.

Lovely sports bra top

Great item and bargain!

icon-circle-checkmark verified purchase
Comes up very small

Great colour but is very small, order a size up

icon-circle-checkmark verified purchase

Hi Amy,

Following feedback from our customers the brand has been made aware that this product does come up smaller than expected. As a result, they have designed a newer sized model that reflects our customer comments -


Sports bra

I ordered this sports bra and is too small I’m a 6-8 and the small is ridiculous feels as if my shoulders are going to be cut from wearing it! Saw that a new resized one came out just after I’d ordered mine The same day and I don’t know why I wasn’t sent this version rather than being sent the one that decathlon knew had sizing issues. Now I have to go through the hassle of printing out a return form label stand in a queue for my bra to be exchanged, very inconvenient. Why is this bra still online if you know there are sizing issues, it will just cause more inconvenience for other people. I feel like throwing the bra away and just going to marks and Spencer’s and buying one there, more money but less inconvenience.

Hello Lauren,

I am sorry to hear that this product has not fitted correctly. We are aware that this product does have sizing issues and as a result there is a newer version as you mentioned. The reason for continuing to sell our remaining stock is that the product has a 4/5 review from our customers. In the incident of a product being unsafe or having a rating of less than 3, we will block the item from being sold immediately. I appreciate that this does not help with your experience but I would just like to assure you that this procedure regarding products is in place.

We of course will welcome a return or exchange should you take this option.


Sizing may have been incorrect.

I didnt try this on left too long to return but when I got home think the label may have been incorrect as didnt seem anywhere near the correct fit.

icon-circle-checkmark verified purchase

Hi Sally,

Thank you for taking the time to give us this feedback on this product. Other customers have also noted a sizing issue with this product. As a result the product has been re-sized and has just arrived in store and on our website - As you are a Decathlon account holder you have 365 days to return unwanted items in their original condition. With that in mind, please feel free to visit any of our stores for a refund or exchange.


Sports Bra Max Support

Fantastic. They would be better if they were a bit longer

icon-circle-checkmark verified purchase
Shape and size

Quality seemed ok but fit was not for me.

icon-circle-checkmark verified purchase
Very small

Very small seems its support comes from squeezing you flat

Hi Colleen,

Thank you for taking your time to review this product. It is true that this product provides support using compression, of course this is not ideal for all. We do however have bras in our range that provide a more traditional style of support through the use of cups and straps. As you are not satisfied with this product, please return for a full refund.


Happy Bunn

Great .. holds well , no leaks . Very hard plastic

icon-circle-checkmark verified purchase
Skip to reviews

Size Guide

Size Guide Visual

Additional Product Information


Main fabric

  • 53% Polyester cationic
  • 33% Polyamide
  • 14% Spandex

How is the maximum level of support of the basic running bra (level 5 on a scale from 1 to 5) guaranteed?

All our products are passed by our bust support test (measurement of the decrease in breast bounce when running) conducted in our laboratories. They are evaluated and given a rating from 1 (low support) to 5 (high support). Like all the KALENJI models, this sports crop top was given a level 5 rating and are suitable for all high-impact sports. *This sports crop top reduces bounce by 45% compared with a conventional bra when practicing high-impact sports.

What type of cup does the basic running bra have?

The running bra has 2 flexible single-thickness cups (no shell). We also offer sports crop tops and bras with breathable molded cups.

How was this basic bra designed?

This sports crop top has been designed for optimal comfort and breast protection: Like all the KALENJI models: * we don't use wires to avoid injury and compression of glands * we minimize seams around the nipple to avoid chafing * we choose fabrics that wick away perspiration to optimize comfort, but also avoid chafing.

A crop top or a bra?

The Basic running bra has sizes ranging from XS to XL, and is recommended for sizes up to a C-cup. The racer back, which is specific to the sports crop tops, spreads the support evenly across the back. For cup sizes from a D-cup upward, the RUNNING EASY ZIP BRA models or ADJUSTABLE RUNNING BRA WITH SHELL are more suitable.

Is this crop top suitable for younger girls?

Sizes 2XS and XS are suitable for emerging busts. This model is therefore particularly suitable for teenagers.

A score to compare the environmental impact of products

The environmental impact of the product is calculated across its entire lifecycle using a range of indicators. An overall score from A to E is calculated to help you more readily identify products with the best environmental performance by comparing the same type of product (T-shirts, pants, backpacks, etc.). Decathlon is committed to visually displaying environmental information. For more information visit:



Product testing

SUPPORT: the support was tested and approved by testers in the DECATHLON laboratory. Each size was tested separately. PERSPIRATION WICKING: the perspiration wicking test was conducted on each material in the laboratory to check that the fabric absorbs and transfers moisture from the inside of the fabric outward and eliminates it. WASHING: The washing and drying tests guarantee good stability (dimensional stability and colorfastness)

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