PLAYGIRL LABEL 4 Layer Reinforced 26 Steel Boned Waist Training Shaper Corset 26 high density steel bone details and corset measurements diagram are in the images. 4 Layers of cloth : 1 x Taffeta outer layer : 2 x Reinforcing cotton middle layers : 1 x Extra strength cotton inner lining layer Use the size chart in the images for sizing instructions. Do not use the Amazon size chart. Designed to pull in the wearers waist, flatten the tummy, improve posture and give a 6-7" waist reduction. Ideal for waist training and weight loss. VERY IMPORTANT - When buying, make sure the seller is True Corset. Playgirl is a registered trademark and is ONLY sold by True Corset on Amazon. AVOID COUNTERFEITS. Details below. Measure under your arms, around the fullest part of your chest and back. The measuring tape must be parallel to the ground Measure right at your bra line, with the measuring tape parallel to the ground. Measure around the narrowest part of your waist, with measuring tape parallel to the ground. This is usually just above your belly button. Do not suck in your stomach, to get an accurate measurement it must be relaxed. Keep the tape snug, but don&#039;t pull tight. You can locate your iliac crest by using your fingers to prod at the top of your hips. Feel for the side edge (crest) of your hip bone. This is the iliac crest, measure around your body at this point with the measuring tape parallel to the ground. Sit in a chair, be sure to sit straight. Place the measuring tape centered under your breast and extend the tape to the top of your thigh.