This is the best running water bottle I have. It holds a lot of water and some light emergency stuff in the pocket. At first it was difficult to get any water out. So, I pulled the light gray center rubber all the way out, then reinserted it just until the tabs clicked into place. After that, water flowed much better. Also, I took a can coozie and cut the bottom off of it and slid the sleeve onto the bottle to insulate it.
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