Jeans have never been so confusing in my life.
Contextclothing has a sizing chart on their website.
According to them, New Standards have a 7 inch leg opening, which is like the perfect skinny jean IMO.
Petite Standards have a 6.5 inch leg opening, which is extremely skinny.
New Standards' measurements seem WAY closer to 511's to me..
I think I'm going to try sizing down to 27 or 28 then...
All you have to do is measure up your favourite pair of jeans, match it up to whatever cut you want, and size down accordingly. This shit ain't rocket science.