The LifeStraw Go water bottle is a must-have for any hiker, camper or traveller. This BPA and chemical free water bottle filters up to 4000 litres of water to 0.2 microns which removes 99.999999% of waterborne bacteria. Fill the 650ml bottle directly from any fresh water source (streams or lakes) and drink directly from bottle filter. This clever device utilises a microfiltration membrane technology to filter down to 0.2 microns to protect against protozoan parasites, effective against waterborne diseases such as E. coli, salmonella, cryptosporidium parvum and giardia. Ideal for hiking, backpacking, running, and other activities where you’re on the move. Requires no electrical power or batteries, just fill, sip and go!