I bought these for working on our farm bc my regular jeans and pants were getting ripped to shreds, mostly by the killer blackberry and wild rose bushes.  I can't believe I waited this long to buy something more durable.  At first I thought they may be too short, but after washing and wearing for an entire day, they stretched out and relaxed more on the hips.  A medium would probably have been to big.  I am 5.5 and 130 if that helps.  I just bought another pair today and will probably buy one for everyday of the week.  It would be really cool if they came out with a few pinstripe patterns:)