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Isothermal Cycling Water Bottle

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Sale price: $7.99 Regular price:

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Model: 8385476

Product Features

A photo of the Isothermal Cycling Water Bottle in use

Isothermal Cycling Water Bottle is designed for cyclists wanting to keep their hot or cold drinks at the right temperature as they ride.

Cycling water bottle with protective cap for the nozzle and an insulating layer to keep drinks cold or hot for longer.


450 ml

Thermal insulation

The isothermal layer keeps liquid hot or cold for longer.

Ergonomic grip

Good handling and cap that's easy to open and close.


Compatible with all bottle cages on the market.

Product Customer Reviews

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769 Reviews
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Isothermal Cycling Water Bottle,silver
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Good for regular use

It's a good product if you drink a lot of water but don't try to use it as thermoflask. Easy to handle and light weight. Hot water reaches room temperature in 2 hours. It would have been a great product if the price would have been around Rs. 250/-.

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Poor product

it's bad because: 1. to drink water, you have to suck with a lot of force which is very annoying while running and/or cycling. 2. the washer fell off and the inner bottle comes out of the casing 3. the outer lid is really annoying as it keeps smacking your face while you try to drink while running/cycling 4. no stray inside so you have to tilt the bottle to drink

Water bottle in hit sunshine

Kept water cool fir a little while despite very high temperatures. Also successfully protected the drinking nozzle from grit and water thrown up from the road.

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Not quite what I wanted

Was reLly looking for something to keep teas hot during the winter. But after an hour it’s cold. Probably better for summer keeping drinks cold.

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Normal and not sure for recommend because get bad smell. Open the cap and kept in open then one day later then checked (no smell) . I am not sure why it’s came bad smell.

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Hello Leela,

Thank you for taking the time to give us your review.  The temperature of the bottle at capping time is higher than the atmosphere. Therefore when we capped these bottles; due to a temperature in the bottle; fumes trapped inside the bottles, these fumes leads to converted into fruity smell after. We recommend washing the bottle 3 times before the first time use. 

Brain insulated bottle

Does not keep water cool even for a short time.

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Hello Prangana,

Thank you for taking the time to give us your review. The bottle is an insulated water bottle and is tested to keep a warm liquid warm and a cold liquid cold for 3 hrs. However, it will not hold the beverage at the exact same temperature as a flask would do. If you find the performance to be poor please get the bottle checked for insulation at your closest Decathlon store to make sure that you have not got a defective product. 

Not so attractive

Insulation is very poor.

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Hello Arun, 

Thank you for taking the time to give us your review. The bottle is tested for insulation for 3 hrs on the liquid contained. If you see that it is ill-performing, we have to check the thermal layer between the container and outer cover.  I suggest you get this checked at the closest Decathlon store and see if the bottle you have purchased was defective. 

Nice water bottle

Bottle is nice,value for money.

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Good but could be better.

Works well for keeping drinks cool, but the downside is the rigid sides due to the inner l8ner. This means you can’t squeeze the bottle to get a good swig at traffic lights etc.

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The quality of this bottle is worst. The layers inside the bottle separated within very few days ... If you are gonna purchase it then please go for any other product .

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Hello Gaurav,

Thank you for taking the time to give us your review. The bottle with its insulation is designed to be removed saperately while giving it a wash. This will help keep the insulator clean as well. I remain available for more questions. 

Chillex ISO thermal Bottle

I bought this bottle 4-5 months back and I have used this bottle very roughly but it thermal is perfectly fine.. if you wanna keep water chill 3-4 hours in 45c temperature it’s worth to go...Dcathlon is the only brand I use for my sports...please open your outlets in Jaipur...Jaipur is waiting to welcome you.....

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isothermal bottle

the quality needs to be improved. the qty of water coming out is very less

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Hello Brijesh,

Thank you for taking the time to give us your review. We have received complaints regarding the cap quality and we are working towards improving the type of polymer used. With regards to the water flow we have not had any complaints. I suggest you check out the same at the closest decathlon store and the store collaborators can help you find a solution.  

Bad quality product

It’s did last even a month, it’s a bad quality product would not recommend it to others.

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Hello Manish, 

Thank you for taking the time to give us your review. Please let us know why the bottle did not last a month. We will take the feedback and try to give you a solution. 
Poor quality

It's not insulated as I expected ..... And flip cover quality is also very poor gets damaged while opening the bottle, will buy new from decathlon store which is soon opening in faridabad haryana (India) .

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Hello Rahul, 

Thank you for taking the time to give us your review. The insulated bottle has a layer of foam insulation around the water cylinder. Please let us know what was your expectation for us to understand our users better and we can try to give you a solution. 

The cap of the bottle is made of clear plastic which could break on impact. If you are particularly looking for an insulated bottles you can find them in this link.

However, those bottles will not fit into the cycling bottle holder. 

Stay cool and helathy

I am using this bottle for long biking trips... I hang this bottle close to engine which produce lots of heat. Even then it keeps maintain temperature of water. The best part is the main cap which keeps dust away. For me size is not an issue, bigger size bottle would have been appreciated. But for short trips its an amazing product.

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Additional Product Information



  • 66% Polyethylene low density
  • 34% Polyethylene high density - Recycled


  • 100% Polypropylene


  • 100% Polyethylene terephtalate


  • 100% Polyethylene low density

Bite valve

  • 67% Thermoplastic polyethylene
  • 33% Polyethylene low density

Isothermal features

Keeps your drink from heating up more than 9°F to 27°F in 3 hours when in 68°F outdoor weather.

How to care for your water bottle

Clean the water bottle thoroughly after each use. If you use isotonic drinks, rinse all parts of the bottle, cap and mouthpiece to make sure there is no liquid remaining inside. Use washing-up liquid and a long brush to clean the bottom of the bottle. Dry it fully and store it without the cap on so that it is ventilated. If you do not do this, mold could grow in the bottle. Do not put in the dishwasher (particularly above 158°F).



Storage instructions

Leave open when storing.

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Size Guide Visual