Thigh High (Closed Toe) * 15-20 mmHg * Classic Black * X-Large * Ankle Circumference 11 1/2 - 13 * Calf Circumference 13 3/8 - 19 5/8 * Thigh Circumference 23 5/8 - 32 Stylish leg therapy that is easy-to-don for soft and comfortable year-round wear * Made with a combination of silicone-blend finish multifiber yarn and 3D knit structure * Cool and breathable which makes it comfortable to wear any time of the year * Guaranteed compression - 15-20 mmHg 20-30 mmHg 40 mmHg - for optimum medical efficacy using multifiber yarns for the softest feel * The reciiprocated and reinforced heel allows for greater durability and lasting comfort * Jobst