My son wears a uniform to school everyday.  We went through numerous pairs of $40 slacks (fading, worn knees) before i stumbled on these at the uniform store.  These wear really well.  They rarely need pressing, the color doesn't fade, the double-knees actually hold up and he can wear them multiple times before they need to be washed.  All i have to do to make them compliant with the dress code is remove the logo on the left knee with a seam ripper.