I saw these while shopping and thought they'd be perfect to add a little extra burn to my workouts. For the $20 I figured they'd be a good purchase. Well, the sleeves are definitely not meant for women with true runner's calves. Like the previous reviewer, the top strap couldn't fit around the back of my leg to the hook closure. I had to put the sleeves on in bare feet (should've been my 1st clue when I initially tried to put the 1st one on). Once on, they were really tight around the bottom of my calves. I wore them for about 30 min to break them in & both of my feet fell asleep! In THEORY, the concept is divine, but as far as being useful...not, unless you have very narrow calves.

Unfortunately, I could not use site to store to my nearest location, so I had them shipped to my home. The size is so small, I would question if even Jillian Michaels could wear them. I almost twisted my knee getting ONE on and off. I returned them the next day. I ordered online and fortunately was able to return them in store. I was highly dissatisfied.