This made a funny looking little bump near my ankle that took away from the otherwise sleek line.  The zipper was very hard to work up and down, and I couldn't tell if this would get better over time.  If you are going to try it, re size, I'm between sizes, and the smaller of the two worked for me.  This will work for thin calves, and makes legs look nice (except for that funny ankle bump, but maybe that was just me).