These shorts are a wicking mesh and are available in the following stock colors:

            Black/white, Columbia Blue/white, Dark Green/white, Maroon/white, Navy/white, Purple/white, Red/white, Royal/white, White/black, White/columbia Blue, White/dark Green, White/maroon, White/navy, White/purple, White/red, White/royal

The mesh is very comfortable to play in as it breathes well and keeps you dry.  These are stock colors and are therefore only available in the above colors.