Originally Posted by Knivesdesu
The 527 is the closest as far as strictly thigh opening is concerned (I believe the 557 is akin to the 559 in that department) but the difference is going to be in the rise of the jean. Both the 557 and the 501 is what levis calls a "regular rise" which means it is intended to sit at the actual waist. The 527 is a "low rise", so it is going to sit considerably lower on the hips. It all depends on it that matters to you, but the 527 is going to sit pretty low. I don't mess with bootcut jeans at all, but I know that the difference between my LVC 501s and the few pairs of 511s that I own is night and day. I don't sag my jeans at all really, but with the 511 I feel like my pants are falling down all day.