DUAL™ 3L Hydration Reservoir

Got this 3L for my vest, but it turned out to be just a bit too long to fit comfortably. Emailed customer service and they immediately shipped out the shorter 2L version and a return label for the 3L that I wasn't going to be able to use. The reservoir itself fits perfectly in my Nathan vest and I'm looking forward to getting a lot of use out of it this summer/fall training for a marathon.

It’s nice to have a bladder that offers my electrolytes and water. Great design easy to use. I’m completely satisfied thank you.

What's not to like, it fits the backpack and hold two beverages.

Good concept. High quality product.

I've had the Mazama 2l with the plastic support for several years and love it. When I broke my valve I had to order a replacement and came across the dual 3l. Well, the concept of having 2 bladders in one was very intriguing so I had to try it.

It was slightly awkward to fill the first time but after that I got the hang of it. I couldn't remember which tube was for my water and which was for my electrolytes so it was like a surprise with each sip. They are colour coded if you pay attention to those things. It will flop over like any normal water bladder does which is why I love the one with the plastic support but I think the dual bladder will soon become my go to favourite.

I like this reservoir because of the dual compartments. I have used it to carry my electrolytes as well as water, which are a must in the Texas heat

This reservoir has become an essential piece of gear for me on long and sunny backcountry skiing trips. I fill it to 1.5 - 2L for a full day and alternate between water and electrolyte-mixed water, and it keeps me from bonking. I was surprised by how sturdy and easy this thing is to use, and it's already withstood a beating going up Rainier, squished to the back of my backpack by camping and avalanche rescue gear.

The only thing I would like improved would be to have the volume measurement be more reliable, and maybe have a separate scale on the back? I'll fill it with some water, and it'll show 1.5L, but when I add another .5L of electrolyte-mixed water to the other pocket, it will still show 1.5L. To make sure that I'm bringing enough liquids—but not carrying extra weight—I've been using a measuring cup to pour into the reservoir.

It was very convenient for carrying different liquids. Very easy to fill up and use.