So while this bottle is very pretty it's not very functional. Either that or there is a trick I haven't figured out (I prefer my H2O bottles trick free thanks). First it leaked and when I tightened what appears to be a locking mechanism where the straw is, the leaks stopped. But I couldn't flip the straw up. My boss, a 6'3" burly guy, couldn't flip the straw up. So I had to take the lid off, loosen it, and then it was like drinking through a straw with a hole in it. I love and hate this bottle so much. I love how pretty it is, I hate how dysfunctional it seems to be for me.