Cant say enough good things about these pants.
Im 52, about 135lbs, 37 inch hips.  I got the 6 short and they are absolutely perfect.  Nice length, super comfortable, good quality.  Lightweight. They also wore great throughout the day and didn't stretch out.  FYI - I ordered the 4 as well (in another color) and they were just a little too snug in the waist  so if you're on the fence about size, I would say go up to the next size. Would be interested in these in other colors  hopefully they will restock in the 6S!