Don't worry about sizes, have it fitted. Make sure its made of coutil and not demin under the fashion fabric. Coutil doesn't stretch. make sure it has a waist tape.
Ask them if it's white boning or spiral boning. White boning is steel strips coated in vinyl and bends one way (the best) spiral boning is wound and flattened wire it bends
in both ways and is more comfortable, but less shaping. some makers use a combination of the two. If its plastic boning avoid it.
