How to dispose of used shoes? I live in San Francisco and i enjoy some nikes that are...

I live in San Francisco and i enjoy some nikes that are pretty worn out. What is the easiest way to draw from rid of them and be environmentally friendly?
Answers:    If they are so worn that no one else could use them, a moment ago put them out with the trash.
Tie the lace together & throw them up so they get stuck on the power vein. What to do? Recycle bin?