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Hiking Stainless Isothermal Mug 0.35 Liters

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Model: 8331659

Product Features

A photo of the Hiking Stainless Isothermal Mug 0.35 Liters in use

Hiking Stainless Isothermal Mug 0.35 Liters is designed for hikers who want to keep their drink hot or cold.

Wide opening enabling you to drink directly from the rim. A filter traps the tea leaves or tea bags. 0.35 liters.


Starting temp. 203°F:137°F after 6 hrs, 109°F after 12 hrs, 86°F after 24 hrs.

Easy to use

Wide opening to drink directly from rim, integrated tea strainer. Stainless.

Easy to maintain

Easy to clean thanks to the screw top. Stainless steel inner wall.


Double stainless steel int. wall con. 18/8 (304) with an air gap between the two

Product Customer Reviews

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Hiking Stainless Isothermal Mug 0.35 Liters,red
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Good quality for a good price!

I wanted to get a flask to use in work but didn't want to spend a fortune on one, however I've found other cheap ones do not keep my brew as hot for as long as I needed. Bought this when in store on a whim and was surprised to discover it would keep my brew hot for up to 6 hours. It's looking a little battered as I have a habit of dropping things but it doesn't leak and does the job. Would highly recommend and would buy again!

Is Not What I Thought.

I bought this for drinking tea at office but it's seem I can't have hot tea at lunch and so on. Didn't expected from decathlon.

Nice Mat black design, keep water hot for 7to8hrs

Good value for money

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Cap has been broken by falling just from 1ft

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Best flask

Very good looking .. colourful bottle .. useful to carry to office.

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Very handy

Looks nice.. very trendy

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Very portable and good while traveling

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Par excellent

It's a fan tasting simple color and keeps the beverage warmish hot for up to 12 hours

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Excellent Quality

Bought and used it and it really served it's purpose.

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Doesn't stay hot for min 3hrs

Doesn't stay hot as said

It's very elegant and good to use.

It's very elegant and good to use.

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Affordable and great quality

Very well-made and easy to use for the price

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Need help.

I brought this flask last week. It keeps re beverage hot for more than 6 hours. Happy with it, but dont know how to use the bottom space of lid to store loose tea or something. Please help.

Nice utility product

Value for money product.

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Small and compact

Great for drinking tea as there is a filter inside. Kinda hoped for a bigger bottle.

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Additional Product Information



  • 10% Polypropylene
  • 90%


  • 100% Polypropylene


  • 100% Silicone

Advice to optimize the performance of your isothermal bottle.

Fill the mug with boiling water for 5 minutes. Then replace the water with your beverage. Close the mug. The fuller the mug, the better it is at keeping the contents hot or cold.


The lower part of the lid holds herbal tea bags, tea leaves or other. This strainer is removable. The wide opening and the surrounding plastic allow you to drink quickly and directly, placing your lips on the mug without getting burned.

Care instructions

Wash by hand then rinse with clear water and leave to dry with the cap off. The bottle can be put in the dishwasher, but do not put the cap in.

First use

Rinse the entire product 3 times with clean water before first use.

Materials and regulations

Our products and materials meet the food-contact standards in effect. They do not contain Bisphenol A (BPA) in accordance with the French regulations in force.

Weight and dimensions

Volume: 0.35 liter Dimensions: Ø 2.8" x 7.5" Weight: 9.9 oz



Product testing

Our isothermal products are tested according to the same protocol: Water at 203°F is placed in the product, which is then closed. The drop in the water temperature is then measured after 6, 12 and 24 hours.

Storage instructions

Wash and dry before storing. Store in a clean, dry place.

Care instructions

Not dishwasher safe.

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


Size Guide Visual