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Trek 500 3 L Hiking Water Bladder

Sale price: $15.00 Regular price: $22.99

Flexible, practical, low-cost water pouch for hydration without limits (3 L).

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Sale price: $15.00 Regular price: $22.99

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San Francisco, 735 Market St. Options

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Model: 8493247

Product Videos

Product Features

A photo of the Trek 500 3 L Hiking Water Bladder in use

Trek 500 3 L Hiking Water Bladder | Our mountain backpacking team has designed this water bladder for trekkers and hikers who want to drink freely during their trek.

Flexible, practical, low-cost water pouch for hydration without limits (3 L).

Easy to use

Mouthpiece with stop/start position, wide opening for easy filling.

Easy to maintain

Sliding strip to open the bladder completely and clean easily.


3 liters, suitable for multiday treks and long hikes.

Questions & Answers

Product Customer Reviews

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546 Reviews
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Water bag

Used for a 2 week hike bad taste of water so I didn't use it again

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plastic flavored water

I bought the hydration bladder and from day one, despite rinsing and cleaning it with all kinds of products, it has had a constant plastic taste. To top it off, and I suppose that after similar criticisms, the brand brings out an update to the bag with better material that leaves no taste. I will request a return, which I hope will be attended to.

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Solid bellows

I would recommend it to those who are buying their first bellows to see what they want from this product. The bellows is more difficult to clean and leaves an odor in the water.

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Love how easy it opens and closes

The slider opening makes it so easy to fill it (big vertical opening) and to close it. I use to have other brands' water bladder with a big twisting cap, which I find much harder to close fully and check for leaks. I will never go back.

3L efficient

In hot weather or for 2 days of hiking, this model is ideal in terms of capacity.

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Water bag

Tends to bend

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good tank

good capacity and solid

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Nickel product for…

Nickel product for hiking

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All that's missing is a protective cap

Super product which only needs protection so as not to dirty the tip. But Decathlon now offers pockets with a protective tip. Solid pocket and easy-to-change regulator (the mouthpiece failed me after 2 years).

Meet my expectations

Meet my expectations

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Very good water bag

Very resistant and with great capacity for day trips. Very happy with the purchase.

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My pocket of two...

My two liter pocket ended up pierced I hope this one will last longer

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Excellent product, very practical.…

Excellent product, very practical. No plastic taste. However a bit expensive, I will buy the others I need second hand

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More convenient than the old...

More practical than the old one with the closure which is attached. The possibility of a 3l capacity that you choose to use as you want without it getting in the way if you only use 1 or 2 liters. Always the same downside with the cleaning of the pipe which is not practical and the cap which is damaged and which cannot be changed.

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Additional Product Information


Skin : 70.0% Ethylene Vinyl Acetate, Skin : 30.0% Polyethylene Low Density ; Cable : 100.0% Thermoplastic polyurethane ; Handle : 100.0% Acrylonitrile butadiene styrene ; Sliding bar : 60.0% Ethylene Vinyl Acetate, Sliding bar : 40.0% Polyethylene Low Density ; Skin/Tube Connector : 60.0% Ethylene Vinyl Acetate, Skin/Tube Connector : 40.0% Polyethylene Low Density ; Tube/Valve Connector : 100.0% Polypropylene ; On/Off System : 100.0% Polyethylene Low Density ; Bite valve : 100.0% Silicone

Directions for use

Use water whose temperature is between 68°F and 104°F. Do not use: alcohol, fats (dairy products, oils, etc).In temperatures below 32°F, blow into the hose after use to remove the water in it and reduce the risk of icing in the hose and mouthpiece.If the sound of water sloshing in your bag disturbs you, empty the air in your water bladder by turning it upside down and guiding the air bubbles out while sucking in the air.


Removable strip over wide opening enabling easy filling and cleaning.This strip has eyelets to hang the water bladder in bags with hooks.Mouthpiece with stop/start position (by turning the gray part of the mouthpiece) to avoid water spillage when hiking. To drink, place the mouthpiece in ”ON ” position then suck while biting down on the mouthpiece.

Care instructions

Clean the bladder and mouthpiece after each use with normal washing-up liquid. You can use the B-TWIN bottle washing kit + drying hanger (code: 631585) particularly if you used a sweet drink. Do not leave the drink in the water bladder more than 24 h. Not dishwasher or microwave safe.

1st use

Rinse the entire product 3 times with clean water before 1st use.

Materials and regulations

Our products and materials comply with applicable food contact standards. They contain no Bisphenol A (BPA) in line with the French regulations in force.

Storage instructions

Wash and dry before storing. Store in a clean and dry place. You can also store your water bladder in the freezer to prevent mold growth.



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