This patella band uses the X-type pressurization design, double pressurization. Continuous pressure on the patella during exercise, protect the patella, reduce friction. Features: External selection of quality OK cloth, wear and loss resistance. The built-in density sponge wraps the patella, disperses pressure and pressurizes it to enhance stability. Fine quality paste magic button, long service life. EVA slow shock, strong protection, damping pressure. Fine quality fabric is not easy to pilling, breathable and sweat absorption. Specifications: Item type: Patellar Support Color: Black Size: Free size Material: Polyester fiber Package size: 150 * 140 * 20mm / 5.9 * 5.51 * 0.78inches Package weight: 60g / 2.11ounces Package List: 1 * Patellar Support