Most of us are lucky enough to have access to clean water at home and everywhere we go. But not everyone is that lucky. Besides, if you are planning to spend some time outdoors, you are going to have to be prepared. The LifeStraw is a portable water filter that provides you with safe, clean drinking water in any situation. It does not require any batteries and can filter up to 264 gallons of water. The LifeStraw filter removes 99% of water germs. It weighs only 2 ounces. Try topping that!