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3D Hydro Trek 3L

3.6666666666666665 out of 5 stars
3 Reviews
Color:Optic Blue



3D Hydro Trek 3L

The first-ever reservoir designed for backpacking, hiking and backcountry basecamps, the 3D Hydro Trek is quick-drying and ready for adventure.

Manufacturer Warranty
limited lifetime
hike & camp

Overall Rating

3.5 based on 3 ratings

Review Summary

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

What do you think about this product?


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4 out of 5 stars

January 19, 2024

Good functionality

This is very nice functionality for backpacking, though I don't know that having all the water weight at the top of my bag is necessarily worth the convenience. Jury's out on that one. And I like the 3-d design to hold the sides of the bag away from each other for drying, but somehow it still dries incredibly slow, like slower than my other reservoirs that don't have this function. Overall, I'm glad I purchased and tried it out, though I don't know that it will end up being my long-term go-to.

Eleni G

Originally reviewed on

5 out of 5 stars

December 7, 2023

Pretty sweet baldder

[This review was collected as part of a promotion.] Everybody's got a bladder out there and I've spent some time with a few. After several day trips and backcountry trips with this one, I really like it. It rides a bit higher in my pack than the longer ones and can fit right on top of my fully loaded-pack. I had no problems with leaking of any kind. The bite valve is great and the Basecamp Tap is pretty nice for filling up my pot to boil water. The handle makes filling from a larger water jug or a spigot easy. If you're in the market for a new bladder I highly recommend this Hydro Trek from Gregory. It will continue to live in my pack.

Get after it

Originally reviewed on Gregory

2 out of 5 stars

July 5, 2023

Good idea, but leaked.

Bladder leaked badly from where the hose connects to the bag the first time and every time I used it. I enjoyed the ability to easily pour from bladder to bottle/cook pot, but having to store the bladder in a waterproof bag in my pack wasn't worth it. I thought I could just adjust how it fit in the pack to avoid whatever pressure was causing it, but a fellow hiker notified me that my pack was dripping. Have gone back to the regular 3L bladder.


Originally reviewed on Gregory