How do you clean the mesh on atheletic shoes?

If the mesh is white with no colors that can bleed, use a toothbrush and some bleach in a spray bottle. You can also use a product called Greased Lightning, which will clean just about anything. Put the shoe on your hand to hold it and spray the mesh. Make a bowl of warm soapy water and dip the toothbrush in it and scrub the mesh. Rinse carefully and let it air dry.