Your lens size thingy didn't work
"Hello, this is the 3rd or 4th pair of sunglasses I have purchased over the years. This time, I tried to adjust the lens sizes to '52' as usual, but the web interface didn't respond. So, I went with the default (I think '47'). Too small. I guess I have a big head. Anyway, I love your product, but that interface could use some work."