Heres a nifty bottle for your bike toursthe Lifestraw has a built-in filter technology that allows a total of 1,000 litres of water to be filtered. Convenient and lightweight at only 168 grams, it has a capacity of two-thirds of a litre. The filter pushes out 99.99% of waterborne bacteria and waterborne protozoan parasites, making your water safe for drinking. 1,990