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Trek 500 3 L Hiking Water Bladder
Flexible, practical, low-cost water pouch for hydration without limits (3 L).
Free shipping over $49
See our return rules
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features

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.
Capacity
3 liters, suitable for multiday treks and long hikes.
Questions & Answers
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Product Customer Reviews

Used for a 2 week hike bad taste of water so I didn't use it again
Convenient
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.
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.
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.
In hot weather or for 2 days of hiking, this model is ideal in terms of capacity.
Tends to bend
good capacity and solid
Nickel product for hiking
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
Very resistant and with great capacity for day trips. Very happy with the purchase.
My two liter pocket ended up pierced I hope this one will last longer
Excellent product, very practical. No plastic taste. However a bit expensive, I will buy the others I need second hand
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.
Additional Product Information
Composition
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.
Functions
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.
Origin
Imported
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
-
Research and development
delivers high-quality cost-effective products
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State-of-the-art production processes
minimize manufacturing costs
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Optimized supply chain
reduces retail prices
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Minimal retail footprint
lowers overhead and indirect costs

Trek 500 3 L Hiking Water Bladder
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
Weight Thresholds | Shipping within California | Shipping outside of California |
---|---|---|
> 9 lbs | $20.00 | $25.00 |
> 30 lbs | $50.00 | $65.00 |
> 100 lbs | $100.00 | $125.00 |
> 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
