Jobst For Men 15 20 Knee Hi Black Large (pair) Geriatric Chairs 1 Tank Capacity*: 3 gal Style:Left Ear 1 Tank Capacity*: 3 gal (11 L) Temperature Range: 160¯ 165¯F (71¯ 74¯C) Thermal Cut Out Temperature: 180¯ 185¯F (82¯ 85¯C) Temperature Accuracy: + 10% Heat Up Time to 160¯F (71¯C): 2 Hrs Cool Down Time from 160¯F (71¯C): 1 Hr Fiberglass Insulation: No Resolution:1bpm Knee High (Closed Toe) * Classic Black * 15 20 mmHg * Large * Ankle Circumference 9 1 2 10 1 2 * Calf Circumference 14 18 1 2 * * Attractive ribbed design with 3 D knit structure * Easy to wear with a comfortable band that keeps socks up without binding * Flat toes seams and a roomy toe section * Reinforced heels for a longer lasting durable product * Anti bacterial additive reduces unpleasant sock odor * Special Moisture Transport System with soft micro and multi fiber yarns in the sole keeps feet dryer * Latex Free * Color: classic black