I've been buying 511 jeans for around 7 years, and the last 2 pairs I've purchased on Amazon do not fit the same as my other 511s.  The material is thinner and feels cheap, and you can see from the photos that the legs are about an inch wider (the jeans are different washes, but similar enough that it's a little difficult to see the difference; the dotted line marks the end of the old 511 pant leg, and everything past that is the width of the leg of the new 511s).  Will be returning