What I didn't know until a friend pointed it out, is that almost ANY water bottle will leak if it isn't filled right to the brim to begin with. (It doesn't hurt to check and make sure the little black washer is in place in the lid before you start.) When you put the lid on with the bottle filled to the top, it forms a better seal and you will experience almost no dripping or leaking. Almost to the top, and you will get drips. Maybe the 'direction for use' explains this to users, but I've been given all my water bottles, so I've never seen instructions on how to use. Lavon Everything happens for a reason... [Posted in FML issue 4937]