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2L Hydration Reservoir - Nomax Tank Bag

This is a replacement 2.0L Hydrapak reservoir for the Nomax Tank Bag.

It features an insulated removable hose with twist on/off valve. The Shape-Shift center baffle makes it possible to reduce capacity to 1.5L. Simply unzip the baffle to carry the full 2.0L of water. The Slide-Seal closure quickly opens up the entire top of the reservoir, making filling and cleaning a snap. You can even turn it completely inside out!

The reservoir is made by Hydrapak from puncture & abrasion resistant RF welded-seam TPU.

  • Compatibility: Nomad/Nomax Tank Bag (all versions)
  • Capacity: 2L / 70 fl oz
  • Capacity with baffle locked: 1.5L / 50 fl oz
  • Dimensions: 340mm x 165mm / 13.3in x 6.4in
  • Weight: 141g / 4.9oz

TPU, PP/POM, ABS, Silicone


The opening is what would be the middle "handle" piece when you flip the flap upwards. It can seem like it is attached to the harder, clear plastic, but the darker, black/gray plastic material should peel away from the stiffer bit.

Customer Reviews

Based on 17 reviews

Very unpleasant taste 🤢bought this about ten months ago. I have rinsed about 100 times and have tried Internet tips like lemon juice solution and bicarb. No difference. It is so bad it is unusable. Very disappointed.

Thanks for sharing your thoughts, Jonay. We're really sorry about the taste issue. We want to fix this for you. Expect to hear from us soon

Wayne Boylan
2L Hydration Reservoir

I had to get another hydration bag for the Nomax and didn't think twice to getting another Mosko moto unit. They work great and give me no issues (unlike other brands). I would buy again.

Greg Tombragel
One of the best water bags I’ve used

This one is great- the quick release hose makes cleaning easier, the bite valve and cover and lock never leaked on a 4 day off road adventure and the fill/seal process was the best. If you are used to years old CamelBacks, this one is 5x better and totally worth it!

Saurabh Bhardwaj
Mosko Moto got your back!

Had a recent experience with a leaking hydration after a new order. Reported it to the team and got a super fast response and a new bladder in a few weeks. Though I have not been able to test the new one as yet, the entire experience and communication was a delight.
I have owned a few mosko items without issues in the past , and now know that incase there is any, the support team has got my back to help out.

Felipe De La Roche
Perfect fit and so nice design

This tank bag fit perfect on the shape for my ktm 1290 adv 2022. The materials and design are just beautiful.
Perfect to use diferent kind of pockets and the rain cover works great. It's comfortable too like a backpack.