To Order
When ordering, it is important that you give your actual, uncorsetted measurements (in inches).  To get these, measure around the fullest part of your bust/chest, the narrowest part of your waist and the fullest part of your hips.  You may also give your bra and cup size (e.g. 34C).  The right size for you will usually be one which, when laced fully closed, will reduce your waist by about 4 inches.  However, you may not wish or be able to lace that tightly at first, but you should be able to lace up your corset so that it fits snugly all over.  The size of a corset is the measurement at the waist when fully closed.  Sizes are as shown on the site and go up in 2 inch graduations: i.e. 20", 22", etc.