We measure our clothing layed flat on a flat surface with no stretch. a 15" bust means 30" all round unstretched. If you have a specific sizing question or would like more information, please contact Customer Care.
1 inch(") = 2.54 cm
measure across fullest part
measure across natural waistline
measure at widest part
measure from shoulder down
our customers to measure a similar piece or cut from their wardrobe(that fits well), lay it out on a flat surface without stretch and compare the taken measurements to the measurements of the product they are interested in.