How do I know the right and left side of the calf sleeves?

The 'Reflective Black' series have silver colored films on the outside.

As illustrated below, the two incomplete 'V' shaped films are attached on the products. 

Alligned next to each other, they should resemble a 'W'.

The 'Rad' series have their size and orientation labeled on the ankle area. 

For example, 'SM - L' indicates a small sized product intended for left calf.