Review on Bottle Narrow Opening Adapter Leak Proof by David Fields

This handy replacement saved me from using my first Sigg as a vase when I lost the lid. Then I found a Hello Kitty Sigg without a hat for two dollars at a thrift store. Thoroughly washed, new cap. and voila! The color makes me happy. I am surprised that this product has negative reviews. I don't understand what to complain about. The lid holds water and has a finger ring. (They liked it, so they put a ring on it.) If it gets dirty, wash it. If you don't want to twist it seven times to take it off, don't twist it seven times when you put it on. (And really, who buys a screw cap and then complains about having to unscrew it?) I haven't tried other types of caps, so maybe I don't know what I'm missing. but I'm very happy with it and glad I was able to buy more.