Find Your Store
Home Page

Cart, contains 0 items

When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
Expert Help
Earn Rewards

3D Hydro 2L Reservoir

5 out of 5 stars
9 Reviews

Out of Stock

Don't worry though, we have a lot more Water Reservoirs in stock than that.

Shop Similar Products

Why We Like The Gregory 3D Hydro 2L Reservoir

For our marathon trail runs and long, all-day hikes, we turn to the unique, soft-molded design of the 3D Hydro 2L Reservoir from Gregory. This reservoir provides comfort and stability on the trail, and it dries quickly thanks to its integrated hanger. The custom SpeedClip attachment system and spine handle make for an easy-to-fill reservoir that fits perfectly in any Gregory 3D hydro-ready pack.


  • Innovative, intuitive hydration reservoir for any Gregory hydro pack
  • Soft-molded construction is durable, flexible, and safe for water
  • Drylock magnetic bite valve for leak-free storage
  • Inline hose quick-disconnect coupling for easy refills
  • Rubberized fill port opening with integrated hose locator
  • SpeedClip attachment is a one-handed, lock-and-go linkage system
  • Item #GREZ08P
100% polyethylene, silicone, TPU
2L (68fl oz)
DryLock Magnetic Bite Valve
14.25 x 7 x 3in
Claimed Weight
Manufacturer Warranty
limited lifetime
hiking, camping, running

Overall Rating

5 based on 9 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 9 reviews

What do you think about this product?


Selecting an option will reload the available reviews on the page
5 out of 5 stars

June 17, 2024

It’s perfect!

Why have I never owned one of these?! So easy to use and clean! Obsessed!


Originally reviewed on Gregory

5 out of 5 stars

June 8, 2024

Gregory hydration bladder

These bladders are great!! They fit universally in all the bags I have.


Originally reviewed on

5 out of 5 stars

May 14, 2024

The Best Designed Bladder

Might be the smartest designed water hydration bladder and system I have seen. When you have a Gregory Back pack, the bladder clips in and out so seamlessly. Love that I can detach the tubing from the bladder so that I don't have to unthread the tubing to refill the bladder. Nice wide mouth to refill and the handle is great to stablize the bladder for easy filling without getting everything else drenched. Not the lightest bladder, but the best designed


Originally reviewed on Gregory

5 out of 5 stars

April 19, 2024

Sturdy well built bladder bag that incorporates well into the brand ecosystem. Highly recommend if you get this to get one of the packs Gregory makes to pair up with it. Bladder is supported well at the top to minimize strain on your back from the water weight. This is great for anyone honestly I bought two.

Jose M

Originally reviewed on

5 out of 5 stars

December 17, 2023

Necessary Accessory

So happy to have one for my husband and I. We also have an extra one for long hikes & to share with the pups. Nice flow. Highly recommend


Originally reviewed on Gregory

5 out of 5 stars

October 18, 2023

Amazing product. Well designed and easy to both use and clean, not something that can be said for most bladder/reservoirs.

Zachary C

Originally reviewed on

5 out of 5 stars

August 28, 2023

Amazing Quality!

Great Quality and perfect size. Have several of these and by far this one is the best!


Originally reviewed on Gregory

5 out of 5 stars

August 22, 2023

This is easy to fill with the handle and wide mouth. I like the quick disconnect for cleaning and storage so I don't have a long tube getting in the way. The built in hanger makes convenient to dry out the bag before I put it away after a hike.

John C

Originally reviewed on

5 out of 5 stars

February 27, 2023

Love the updates!

[This review was collected as part of a promotion.] This hydration bladder has so many innovative features! I love that I can disconnect the valve from the reservoir without taking the whole thing out of my pack. I also love the hanging hook and how wide it opens to dry.


Originally reviewed on Gregory