Nude original Spanx support knickers featuring a high waist, an improved tummy control panel, cotton double gusset for ease when nature calls, mid-thigh length with a leg-band free design to ensure a smooth line and unique technology to ensure that legs stay securely in place. Spanx knickers comfortably shape and support with no visible lines. Spanx knickers are sized. Size conversion is as follows: S is Spanx size A, M is Spanx size B, L is Spanx C. 85% nylon, 15% lycra. Hand wash.