I have a short commute, but if I wear my work clothes (business casual) on the bike I wear the crotch out fairly quickly. It seems kind of silly to be changing clothes for such a short commute, but I can't afford to keep risking a "thigh blowout" at work
or replacing my work pants.
Perhaps polyester or microfiber?
Would wool slacks hold up that much better than my cotton blend slacks on the bike to justify the extra expense? I'm a Clyde so my clothing gets fairly expensive to replace.