I bought a pair of the Levi Super Skinny 510s for my husband.  He's very slender, so it's hard to find jeans that fit.  I got him the 30X30 originally, which is the same size he usually wears in the Gap brand (which fit him wonderfully!)  But, he wanted a pair of actual *blue* jeans, which is why I decided to try these.  The 30X30s were fine - until I washed them.  They shrunk considerably and now were too tight for him - (He couldn't even button them!)  I had to return them.  So, I decided to try the next size up, but there were no 31s so I decided to go up to the next size, 32X32 --  which I thought might be okay, since there was such a shrinking problem.  When the jeans arrived they were NOT the same style, even though they were advertised as "super skinny" and had the same style number, 510.  The waist was much higher,  and they were cut large through the seat and the thighs so -- I had to send *them* back, too.  So, my advice is - if you want to buy these, try buying them one size larger than you normally would, and check to make sure they are the cut you thought you were getting.  Apart from all that, they seem like very nice jeans.