Xfome Style Women Slimming Calf Muscles Shaper Compression Sleeve Elastic Shank legs to Burn Fat Applicable to size of calf circumference: 24cm~47cm / 9.45 Inch~18.5 Inch. Breathable Materia - Made of super stretchy fabric material and thin design to fit comfortably underneath your clothes. Helps to shape and reduce the visual appearance off calf circumference. Improve and strengthen your saggy and jiggly legs while in motion. Graduated compression - The Compression Simulates Your Blood Circulation During Movement To Help Burn Calories In Your Legs. Easy to use - You can put on it when sleeping,working,shopping or sporting.