Review on 🍹 2 Pack Replacement Straw Lid for Hydroflask Flip and Spout – Wide Mouth 2-in-1 Cap with Handle – Compatible with Hydro Flask Lid – Top Sports Water Bottle Accessories – Fits 12, 16, 18, 20, 32, 40, 64 Oz by Tony Reid

These caps work great when you put them on. It takes a lot of work to align them and put them on a thermos or hydro flask. It seems that the thread inside the cap isn't very deep, or at least the first one, so it's difficult to get it on the bottle. They don't lick much after that unless the bottle is turned upside down. 2 holes are great, much more useful than alternative lids. However, you notice that the plastic is a bit cheaper than with hydroflask caps.