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Tarmak Soft 300, Supportive Lumbar Brace

Sale price: $24.99 Regular price:

This lumbar brace supports your back and limits movements that could cause injury during training sessions and matches. Play on any terrain without worrying about back pain.

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Size Guide
Sale price: $24.99 Regular price:

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8358398

Product Features

A photo of the Tarmak Soft 300, Supportive Lumbar Brace in use

Tarmak Soft 300, Supportive Lumbar Brace | Soft 300 supportive lumbar brace designed to help you return to your sport after suffering minor back pain.

This lumbar brace supports your back and limits movements that could cause injury during training sessions and matches. Play on any terrain without worrying about back pain.

Joint support

Boning at the back for guaranteed lumbar support.

Easy to use

Easy to adjust to your needs while you exercise.

User comfort

Flexible, comfortable compression that fits the shape of your back.

Moisture wicking

The fabrics and design wick away perspiration.

Product Lifestyle Image Gallery

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Tarmak Soft 300, Supportive Lumbar Brace,black

Product Customer Reviews

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Tarmak Soft 300, Supportive Lumbar Brace,black
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very confortable to use

very confortable to use

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Best shop around

Polite, friendly staff, excellent and plentiful products to choose from and all top quality.

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Great product

Works well

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Great value

A brilliant back support that helps my supports my back when cycling and running.

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The size range is not helpful and is not directly related to waiste size. As it's important to significantly overlap both ends go up one size. Mine is unusable as it's too small for a 32"waiste.

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Hello Michael,

thanks for taking the time to leave a review on the Soft 300 Lumbar Brace.

I'm sorry to hear about your not satisfactory experience with our supports sizing unfortunately, being a international company, we had to come up with a sizing system that could work for all of our customers so, for all of our supports, there are specific measurements that need to be taken to understand which size would fit properly.

Anyway, I can suggest you to take the item with the receipt to the closest Decathlon store where you can exchange it for the right size or get a full refund.



Back pain sufferer

Fantastic product very comfortable and fkexible to wear. Gives lower back stability when streatching and moving about. Helped my confidence in excercising more knowing things have more stability.

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Excellent Product

One of the item must have with you to support your back while driving sports two wheeler, doing gym and software professionals sitting for longer times.

Back pain relieved

Suffered some back pain after running distance and so purchased the lumbar belt and this really helped in relieving the discomfort.

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Lumbar support very comfortable and easy to wast d

Would recommend this item

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lumbar support belt

Flexible yet very supportive - very adaptable ,used so far for canoeing, gardening, fruit picking. Worn outside other clothes so can be quickly removed.

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Women supportive


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Not good material

Not good material

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Buy this If You're Prone To Injuries

Hey sporties, I would recommend you to buy this if you lift weight, it will help you to keep your chest out always, maintaining good posture.

Poor quality

Got loose after couple of use... Terrible, money waste

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Hello Sir,

Thank you so much for writing in with your feedback. I understand you have some trouble with the sizing of the knee brace. I am sharing a link which would help you determine if the size you have is the right size. Please ensure you measure your thigh 8cm above your knee for sizing.

As with any elastic material, the knee brace will loosen slightly upon repeated use - please factor that in as well when making your selection.  We will be happy to exchange the product to give you the right size (as long as the product is is saleable condition). If you feel that there is a manufacturing defect, please visit the nearest store for our teammates to check the product.

In case of any further questions / feedback, please do not hesitate to reach us on

Thanks and regards,

Akanksha Tomar

Omni Merchandiser, Tarmak

Lumber brace

Found it to be of good quality and usefull

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Size Guide

Size Guide Visual

Additional Product Information


Main fabric

  • 62% Polyester cationic
  • 23% Elastodiene
  • 15% Polyamide

Why wear this back brace?

Wearing this back support, with its boning at the back, may be recommended if you have lower back pain/lumbago, or if you are unsure about how your back will cope when getting back into sport (basketball, soccer, handball, tennis, running, trail running, gymnastics, judo). It is easy to put on and adjust, with a shape designed to fit your back and keep you comfy.

What is the difference between lower back pain and lumbago?

Lower back pain and lumbago are actually the same thing: back pain in the lumbar region. This pain can be caused by different things, from fractures to deformities and slipped discs. The pain will only disappear if the cause is treated. Wearing a back brace can help reduce pain thanks to its heating action, compression, and the restricted movement.

Choosing your lumbar brace size

Measure your waist size, to 2" above the hips. Then match the measurement taken with the following size chart: Size 1: 25.6" - 33.5" Size 2: 33.5" - 45.3" Size 3: 45.3" - 55.1"

Did you know that all tarmak products are field tested?

The design team behind the TARMAK products is based in Northern France. It is constantly seeking to improve its products to best meet players' needs. All of our models are tested in real-life situations for several weeks by demanding players and are updated based on your feedback.

What gear to get, how to train: explore our basketball tips!

Tarmak is here for anyone playing basketball, from beginners to regulars. Take a look at our tips for training, equipping yourself and prepping:



Product testing

This product has undergone laboratory tests (washing, colorfastness, wear) to ensure that it meets our quality requirements.

Storage instructions

Store in a clean, dry, dark place. Put the adhesive parts on the elastic band to protect the knit from premature wear.

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

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

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    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual