Review on RUPUMPACK Hydration Pack: 2L Water Bladder Backpack for Men, Women, Kids - Ideal for Cycling, Biking, Hiking, and Running by Robert Prix

Terrible bubble design. It really should open from the top and was too difficult to wash. It never dries and leaves too much moisture with room for bacteria. The inner material feels a little cheap and I think the stitching will tear with frequent use. I also bought two and one of them had a bladder and tube wrapped in a sealed plastic bag. In another package it was unpacked and assembled. Doesn't seem hygienic to me, maybe it was the one that was sent and sent back. I really didn't want what I'm drinking from already processed