- Plastic
- Imported
- Offers 20% more water per sip
- Lumbar design shifts water weight to your lower back for more stability on the trail
- Leak-proof cap is easier to open and close
- On/off lever lets you seal your drinking tube shut with one hand
- Big bite valve self-seals after each drink, eliminating annoying drips
From the manufacturer

An Endless Reservoir of Innovation
From the rugged Crux to the fast and light Fusion, or the Fusion Group Reservoir, we’ve got you (and the crew) covered for every adventure.

The History of the CamelBak Hydration Bladder
In 1988, the world’s first hydration bladder was born in our founder’s backyard. With nowhere to go but up from that early prototype (literally an IV bag shoved into a tube sock) we continued to innovate. And for 2022, we’re introducing our most advanced product series yet. After countless hours and numerous versions, it’s time to meet the most functional and user-friendly hydration reservoir on the market—the Fusion reservoir.

Fusion Hydration Bladders
Our innovative Fusion Reservoir hydration solutions offer maximum versatility and lightweight performance for any adventure. Designed with a Tru Zip Waterproof Zipper, this bladder delivers leak-free hydration so you can keep your mind on the journey ahead. An integrated handle and pinch grip construction allows for comfortable and easy single-handed filling at sinks and refrigerators. Fusion hydration reservoirs are 100% free of BPA, BPS and BPF.
Available in 4 sizes:
- 2L
- 3L
- 6L Group Hydration Reservoir
- 10L Group Hydration Reservoir

Crux Hydration Bladders
If there’s one thing we know best, it’s water. Crux delivers more water per sip, with an ergonomic handle for easier refilling, and an on/off lever that makes it easy to prevent leaks. Like all our gear, we put the Crux through exhaustive stress tests to make sure it won’t fail you on the trail. Crux hydration reservoirs are 100% free of BPA, BPS and BPF.
Available in 7 styles:
- 1.5L
- 2L
- 2L Crux Reservoir Filtered by LifeStraw
- 3L
- 3L Crux Lumbar Reservoir
- 2L Stoaway Insulated Crux Reservoir
- 3L Stoaway Insulated Crux Reservoir
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CamelBak Fusion 2L Reservoir with Tru Zip Waterproof Zipper | CamelBak Fusion 3L Reservoir with Tru Zip Waterproof Zipper | CamelBak Fusion 6L Group Reservoir with Tru Zip Waterproof Zipper | CamelBak Fusion 10L Group Reservoir with Tru Zip Waterproof Zipper | CamelBak Crux 2L Reservoir | |
Capacity | 2L / 70 oz | 3L / 100 oz | 6L / 200 oz | 10L / 338 oz | 2L / 70 oz |
Weight | 144g / 5 oz | 153.5g / 5.5 oz | 235g / 8 oz | 310g / 11 oz | 210g / 7 oz |
Quicklink System for Easy Reservoir Removal from Pack | ✓ | ✓ | ✓ | ||
Closure System | Tru Zip Waterproof Zipper | Tru Zip Waterproof Zipper | Tru Zip Waterproof Zipper | Tru Zip Waterproof Zipper | Twist Cap |
Designed for | Use in hydration packs | Use in hydration packs | Group hydration, includes high flow spigot for filling vessels, washing hands, or cooking | Group hydration, includes high flow spigot for filling vessels, washing hands, or cooking | Use in hydration packs |
BPA, BPF, and BPS Free | ✓ | ✓ | ✓ | ✓ | ✓ |
Product Description