Hi, The measurement 2" above my knee is 16" so I bought the size L as advised on your website. Midway along the sleeve at the front there are 2 round "see through" sections which I assume indicates the correct knee location/position.
When wearing the sleeve it does not remain in the initially located position and works it's way downward to a point where it has to be readjusted back into position.(not good) Also there are 2 flexible strips that run vertically on either side behind the leg that are uncomfortable at the top after wearing for a few hours. (not good)
Summary, does provide some support but does not remain in the set position and is a bit uncomfortable after a few hours use. Am I doing something wrong?