@alfeng, yes, I agree with you! I discovered this the hard way when I bought some neoprene booties which don't fit my size 11 Keen cycling shoes -- they are much too small. That was USD $60 down the toilet. Or is it the bidet?
@maydog, I have the same experience with Gore Road Overshoes. They are trash. Another $55 down the toilet. They proved what dabac says. I did do a "contact us" webmail on the Gore website to complain about the overshoes. I will see what comes of it.
My new strategy is to try out some neoprene socks plus neoprene shoe covers. I am also wondering if it will help me to rubber band very large ziploc bags to my feet -- with holes cut out for the shoe cleats, I mean. The plastic will shred, but should cost me much less than $55. On the other hand, if it shreds too much, it will pollute the environment with plastic, and I don't want to hurt the environment. One strong reason for my bicycling is that I don't pump hydrocarbons into the air -- except for farts, I suppose.