There's a lot to be said for Aquamira's bottle. First, its filtration system removes chlorine, bad tastes, odor and 99.9 percent of the two leading causes of waterborne illnesses: Cryptosporidium and Giardia. And, a feature called BITE-ME means that to drink, all you need to do is bite the straw, sip—no need to tip the bottle up at all—and then bite again to shut off the flow. Genius!
To buy: Aquamira Filtered Water Bottle, $30