In California last week, I saw this neat water bottle that rolls up when you are done for easy storage. It freezes, doesn't leak and looks "cool". Top it off, it is BPA free! Hooray. I bought a couple and after trying them out on the highschoolers, the little ones begged for their own. Amazon saved the day and we ordered a few more.
They have this great clip on them so they can clip right to their backpacks. Lightweight, stylish and durable. Thanks, Vapur. Great idea.