I think these things are so ugly ....But they really help my feet i have tried all kinds of pads and shoe inserts and gel soles ect...these are soft and very comfortable and with my diabeties they let me stand and walk longer than before without my feet giving me so much trouble...the price here was 40% less than at my local sporting goods store for exactly the same shoe...The ones with the GRAY soles have a good 1/4 inch thicker sole than the org. ones so if your having problems with acky feet these for sure helped me out...Be sure and get one thats large enough the first pair i bought was my size but snug problem was it would get tight on me when my feet started to swell after walking for a while so you may want the next size up.....The sizes seem to be the same as on a reg type sports shoe so if it says 12 its a USA 12  but they do seem to run a little narrow and they don't offer then in wide widhts.. Amazon made it right with me and refunded my money , My order contained a size 12 and a size 13 shoe ,so not a "pair" .These are so hard to find ,I still have not found a set of size 13 like I wanted...