How to Choose the Correct Size: Please take your measurements based on our photos. Luvsecretlingerie Heavy Duty 22 Double Steel Boned Togo This corset can draw in your waist and flatten your tummy & suitable for Tight-Lacing, Shaping and Waist Training. It can also help with posture correction if wearing it during work. For example, for a 30 inch natural waist, Corset Size 26 inch (Size M) fits for tight-lacing. Kindly use our size chart to choose the correct size. The corset size selected based on your waist measurements can fit you well as long as your Bust & Hip measurements are within the range. The size proposed is 4-5 reduction on your waist when wearing the corset. Please choose the size based on natural waist measurement. Total of 22 Steel Bones- 2 Strong Steel Busk Bones (1 inch wide each) at the front, 4 Rigid Steel Plates and 16 Spiral/Flexible Steel Bones around the corset Brand- luvsecretlingerie Heavy Duty Double Steel Boned Corset for perfect hourglass figure.