I'm planning to upgrade to clipless pedals in the next couple of months or so, and thus a pair of "real" biking shoes.

My problem is that most of the shoes I've seen contain leather, which I do not wear. I'm wonder if anyone knows of any shoes that contain only man-made materials.

I'm looking for "mid-range" shoes, and I do mostly commuting and touring, and some mtb'ing, but no racing or anything. I have a mtb right now, but would like to get shoes that will also work with my road bike (when I purchase it . Thanks!