“Pretty flexible and works like a charm! Sometimes they do like to stray away from the hole in the lid but it's an easy fix to get it perfectly back in shape, considering the flexibility is to die for.It's a pretty neat thing and I love that i can use it in my hydro jug. I am a straw girly so without this I probably would not have bought a hydro jug in the first place, so a good invention this was. Definitely the upgrade you need for your water bottle.”
