I have shrink to fit 501s that are size 30w34l and the waist is getting too tight. I bought these pre-shrunk but was not prepared for how much different they are from shrink to fit. First I bought 32w34l and they are enormous. Then I bought 31w34l and they are really too big. Just a heads up for anyone using their current jeans to choose a size: the difference between pre-shrunk and shrink to fit is dramatic.