JerrisApparel Women's Latex Trainer Shapewear Workout Waist Cincher Vest Please measure your current waistline before ordering, feel free to contact us for any size question. Select a size and color, and then click seller name. Click "Ask a question" at top right of JerrisApparel profile page. This corset is supported by 4 spiral steel bones, which is the fins material inside the corset. It's flexible and durable, as soft as plastic bones, bending easily but recover quickly to origin. 3 rows of hook and eyes, it ensures you could adjust the size at the most extent, and it can tight your belly completely. High Compression, reduce your waist line instantly. Perfect for everyday wear and during workout. Core: 100% Latex. Lining: 96% Cotton + 4% Spandex