Review on Replace Your Nalgene On The Fly Cap With BPA-Free Water Bottle Cap by James Prizgint

Unscrewing a lid sucks.Having a giant mouth opening to drink out of (especially when driving) sucks.This lid is quick to access and easy to drink out of - really everything you need out of a lid. I drink from this daily - tea, water, bcaas, zip fizz, etc. Never had a mold issue that I'm seeing in some comments (though I do clean it fairly often). Been using for years, with no problems, other than the white rubber does become discolored over time.I wish there was a similar lid available for stainless bottle options out there. Not a huge fan of drinking out of plastic - but this lid is what keeps me using nalgenes instead of klean kanteens, hydraflasks, etc.