They don't say you should drink roughly 2 liters of water a day for no reason. But how pure really is the water that you are currently drinking? The 'WELLY' Bottle was designed to give people who are serious about staying hydrated the power over their own water purification. The bottle is entirely BPA and phthalate free. It has an opening big enough to accommodate ice cubes and bamboo hand panels you can squeeze to accelerate water flow! Best of all $1 of every WELLY bottle sold and a percentage of every future filter sold, will go straight to Charity: Water. Check it out!