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Crux Lumbar Reservoir

2.75 out of 5 stars
12 Reviews
Color:One Color



Crux Lumbar Reservoir

CamelBak redesigned the Crux Lumbar Reservoir to offer 20% more water per sip and to sit lower in your backpack for better stability on the trail. Its polyurethane composition still consists of Hydroguard antibacterial technology to reduce bad smells and tastes, and it's completely free from BPA, BPS, and BPF.


  • Recently updated reservoir delivers 20% more water per sip
  • Hydroguard technology inhibits bacterial growth
  • Leakproof cap is easier to open and close
  • Big bite valve self-seals after drinking
  • On-off lever adds security
  • Item #CAM007N
100% polyurethane
big bite valve, on/off switch
10.5 x 11 x 3in
Manufacturer Warranty

Overall Rating

3 based on 12 ratings

Review Summary

1 Stars - 6 reviews
2 Stars - 1 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 5 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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

May 26, 2022

What does this fit?

The reservoir is fine, no bad taste, no leaks, but it doesn't fit my pack. I bought this pack as a replacement for my Camelbak hip pack. It doesn't fit at all, and now I have 45 reservoir that I need to find a new pack for. :-(


Originally reviewed on

1 out of 5 stars

August 17, 2021

Leaks a ton

Have used a few times. The design of the pack is pretty cool, but the reservoir leaks. Thing is almost impossible to seal properly. Oh-well 100 bucks+ down the drain


Originally reviewed on

5 out of 5 stars

May 5, 2021

rep review

I've put it through the wringer
Size Bought:
5' 9"

This Low Rider version is meant for packs that carry the water at the waist. If you have a CamelBak pack and the model name includes "LR", then this is the correct replacement. For example M.U.L.E. LR or Skyline LR (my personal favorite for Mt Biking). As the rest of the reservoir line up, Hands down, this is the most durable reservoir on the planet. Impact resistant, Puncture resistant, you can boil it, you can freeze and it has an anti microbial built into the reservoir itself that will not flake off if scrubbed with the most abrasive cleaning implement you can come up with. If it leaks from a manufacturing defect, CamelBak will replace it with their Lifetime Got Your Bak Guarantee.

addicted m
5 out of 5 stars

August 28, 2020

Perfect for MTB

Works perfect. No bad taste like cheaper options. Tastes like clear spring water without having to get off your bike. Skyline lumbar bag keeps the weight low for a good center of gravity on jumps. Throw the bladder in the fridge overnight and it stays cold all day.


Originally reviewed on

1 out of 5 stars

May 10, 2020

Leaks leaks leaks

Can’t seal it. I’ve tried everything with no success. This is the last camelbak product I ever buy. They should know better. Lots of other great products for other companies out there.


Originally reviewed on

1 out of 5 stars

July 16, 2019

Leaks, more like dumps

Thought I got lucky... this came in my mule ($130) and worked well for six months. Now? Completely worthless, and I’ve tried a lot of different things to get the reservoir to seal again. My buddy bought the same pack and has the same problem. It’d be nice if camelback got their act together, what a load of garbage. Go buy an osprey.


Originally reviewed on

1 out of 5 stars

August 3, 2018


The product immediately didn't hold water right out of the box. The o-ring didn't properly seal causing leakage whether there was 3L or 0.5L This product is being returned.


Originally reviewed on

5 out of 5 stars

June 23, 2018

Works Great for Me

This Lumbar 3L Reservoir came in the CamelBak Sundowner that I bought a year and a half ago in preparation for a one-day Grand Canyon South to North Rim to Rim hike. Since then I've also used it this spring for a one-day Grand Canyon Rim to River to Rim hike. I like how the reservoir fits low on my back in the Sundowner, and the water stays relatively cold. I've never had a problem closing the lid tightly. For me, it's been a great reservoir, keeping me well-hydrated during training and Grand Canyon hikes. I especially like how easy it is to drink from the tube.

Texas Mom

Originally reviewed on

1 out of 5 stars

May 20, 2018

Wider hose not a good idea

I wish Camelbak would spend more time testing their product. It seems no thought was invested in studying how expanding the diameter of the hose would increase the amount of hot water in warm climates like Arizona. I just bought this Reservoir thinking the value connection improvement would be good. I didn't realize they expanded the hose diameter. Bad Idea. All it took was a single ride to realize how quickly the water heated up from the sun. BTW- hose insultation doesn't work either on their 'cold weather' gear. Camelbak, please invest in features that matter. Hot water in Desert climates is a problem. There's solves for this's time to come up products that support it.

AZ_MTB Rider

Originally reviewed on

5 out of 5 stars

May 15, 2018

Perfect for getting around

I bought a pack with the reservoir. It has never given me a problem over the 6 months I've had it. Really like where the water weight sits as opposed to along the back. Never leaked yet.


Originally reviewed on