Waist trainer is made of 55% Nylon 45% Spandex fabric. The material is stretchy, soft, breathable, skin friendly, not stiff and itchy.Hugs your midsection firmly. Adjust the tightness by the hooks & eyes closure to strengthen the compression on your belly & waist which create you a slim waist ideal shape.The wide shoulder straps is adjustable, prevent slip and won�t dig into your shoulder. stomach shapewear puts everything in right place, shape you a perfect body curvy, help you look slimmer under your daily outfit etc.The open crotch is soft &easy for using the restroom instead of taking your clothes off every time.The open bust u-shape of this waist slimming girdles makes it easy to put on & take off.