I purchased these ankle high compression socks, I’ve never wore compression socks so wasn’t sure about what size to order. Somewhere it said to get the smaller of the,2 I saw. I wear a 91/2 shoe but I have wide EEE feet My choices were Men’s 7-10 size medium, large was size 10.5-. 12. So I ordered the medium size. When I put them on to say it was a struggle, had to roll up the sock and start toes in the sock then gradually keeping the sock tight,roll them up to cover heels, then pull up over my ankles. I’ve worn them 1 time yesterday and 2nd time today. They do seem to work as advertised, time will tell how tight is too tight. Only issue was loose threads at the top of the socks, cut off threads hoping they won’t keep having loose threads. Overall Happy with them, a little expensive for 3pair of socks.