i got my 1st pair as a gift from my bf. i use them more for work than for exercise; at times i can be on my feet all day operating. these are GREAT compression stockings/socks-- my legs feel much better at the end of the day after wearing them. my bf knew i liked them so much, i got 2 more pairs! well worth the price. i wear a size 6.5-7 shoe & got the S. fits just fine.