I did not wear them on the street. I suspect that they will quickly break up. In general, my size is m, in the straps pulls a little. If you have slender legs, it will be perfect to sit.
I ordered at once 2 pairs: red and black. It turned out that they are different in length: red is almost 30 cm longer. My height is 178. Red stretch on the whole leg, and black only 10 cm above the knee. There are no selicon inserts. Keep only at the expense of gum.