Corsets run smaller. Please choose the upper size if you are not quite sure TDOLAH is a registered brand, it has own TDOLAH Tag and the TDOLAH trademark Please use our size guide located on the left of the product image, do not use the Amazon size guide The string on the back is adjustable, please try to adjust it to be more fit for your body 2 Pieces, including 1 Corset, and 1 Matched G String Machine wash cold gentle cycle. Do not bleach. Tumble dry low or line dry or dry clean