How exactly does it work? I should put it inside the backpack? Can it be used in any kind of backpack?

Hi, dear customer. Thank you for your question. This is Amanda here to serve you. About our hydration bladder, we have attached detailed instruction on our package for you to quick start on using hydration bladder. Here is the instruction for you. 1.Open the cover by counter-clockwise, and close it by clockwise. 2.Gently bite and pull the tip of the valve with front teeth and push back to stop water flow . 3.For the best results,please do not bit hard or chew on the valve. 4.Please cover the valve when not in use. About your other question,our L 14.2'' x W 6.8'' Hydration bladder is compatible with most hydration packs. When they hydration bladder is empty, it can be folded .So it won’t occupy much room in your backpack. The tube (0.4” diameter, 40” long) provides a wholesome flow for easy drinking, keeping you hydrated when biking, cycling, hiking, or running! You will love this hydration bladder when you get it. Please feel free to write to us if you have any more questions, we are here to serve you all the year around. Regards.

How do you recommend this being washed? I just received this today

Hot water and 2 tablespoons of baking soda.

With such a big lid for filling, how are you to get the full 2 liter's in? Is it 2 liter's starting under filling lid?

I found no way to successfully fill this bladder with 2 liters of water without a bunch of it spilling out when you screw down the cap. Another reviewer reported capacity at 1.6 liters.

Any way I can order a longer tube? I would like to use this while motorcycle riding

I have not found a specific one but you could us aquarium tubing of the same diameter

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💦 Stay cool, sip smart, and never miss a beat with CHERAINTI hydration!

FLOW ON DEMAND - High-flow bite valve with soft silicone mouthpiece and dust cover lets you sip effortlessly while on the move.
BUILT FOR EXTREMES - Temperature-resistant tube and premium BPA-free TPU material keep your water fresh and bladder durable from -20°C to 50°C.
HYDRATE LIKE A PRO - 3L large capacity keeps you fueled through long hikes, rides, and runs without constant refills.
ICE READY WIDE MOUTH - Easily add ice cubes or clean thoroughly with the extra-large opening—no more lukewarm sips or hidden grime.
LEAKPROOF CONFIDENCE - Double sealing side technique and auto-shutoff valve ensure zero spills, so you stay mess-free and focused.

The CHERAINTI GVIUM-ASOH-220 is a premium 3-liter hydration bladder designed for active professionals and outdoor enthusiasts. Featuring a wide-mouth opening for easy cleaning and ice insertion, a durable double-sealed construction for leak-proof reliability, and a high-flow bite valve with an auto-shutoff system, it ensures convenient, mess-free hydration. Made from BPA-free thermoplastic polyurethane, it withstands temperature extremes and fits most hydration packs, making it the perfect companion for biking, hiking, running, and camping.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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TrustScore 4.5 | 7,300+ reviews

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Great experience from order to delivery. Highly recommended!

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Strap type	Adjustable
Capacity	3 litres
Tank volume	3 Litres
Manufacturer	CHERAINTI
Color	3L -Water Bladder-Military Green
Size	3L US
Material type	Thermoplastic Polyurethane (TPU)
Number of items	1
Batteries included?	No
Item model number	Hydration bladder 3L
Product Dimensions	19.3 x 19.3 x 42.93 cm; 281.23 g
ASIN	B0BJ6RWR6L

Electronics GVIUM-ASOH-220

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