During the holidays, my two teenage daughters switched to the new "it" hydration tumbler, the Owala water bottle. They love theirs, and so do many other parents and teens. Every weekend, the sporting ...

I thought I’d give it a chance. I followed the directions exactly, used gloves, and left the gel on for no more than five ...

So, I figured it was finally time to upgrade to one of the trendy thirst-quenching tumblers everyone has been obsessing over.