Even after being married for almost 15 years I still don't understand women sizes.
Men's sizes are easy. I wear a 32 waist (Or I did before I lost 20 poulnds). That means my waist is 32 inches.
Womens is based on some weird system. I mean how can you have a size zero? And one briands size 16 is another brand's size 15.
I can walk into the store and pick out a pair of jeans that fit the first try.