Recently, I donated to Sophia Bush's CrowdRise fundraiser for Nature Conservancy, where she ran a marathon in San Francisco. Just for showing her support, I received a water bobble in the mail. These are such a great little idea!!! There are filters inside the water bottle, so you don't have to waste anymore money on prepurified water! The filters even last as long as 300 uses. Amazing. A much appreciated gift all in the name of saving our beautiful Earth.