I'm the reliable friend who keeps everything together. Just slip me into your FreeSip lid and I’ll keep your water where it's supposed to be— in your bottle, not your lap.
I had a bad gasket in my original Owala freesip. This replacement part worked great. Should have ordered more because my other water bottle needed a new one due to mold. I guess you just have to watch for mold growth on the silicone gasket and replace as needed.