Maternity Panty Curve Smoothing should be. 1. A blend of nylon and spandex fabric is stretch, lightweight, breathable, and durable; 2. Seamless shapewear in a fancy style gives you the figure you want and makes you feel confident; 3. Perfect basic underdress prevents thigh chafing and rolling up; 4. Anti-slip buckles prevent sliding or falling off, giving you a joyful and comfortable day; 5. Good to wear when you in office, at home, doing gym workout, doing yoga, and even during sleeping.