These corsets are sold by bra/underbust size. For example, if you wear a 36C bra, you would order a 36 corset. If you are taller than 5’7 or are larger than a D cup, we strongly suggest ordering one size up. This size chart in no way is a guarantee or promise that the item you buy will fit you perfectly. If after reviewing the size chart you are still unsure of what size to order, contact us with your measurements before you place your order. We can assist you in finding your correct size and answer any questions you may have.