Denny number is a unit for calculating the thickness of fabric fibers. The higher the Denny number, the heavier the weight and the stronger the compactness. The lower the Denny number, the thinner the fabric and the higher the transparency, which means that the bigger the Denny, the tighter and thicker the pressure, and the better the stovepipe effect! (Danny stands for D) The gradual partial pressure design can accelerate fat burning and achieve the function of stovepipe and beautiful legs. Because elastic socks have great pressure per square centimeter, they can tightly wrap the leg muscles. When walking or exercising, the calories consumed by muscles will be 2-3 times or even 5 times more than those without elastic socks, so as to achieve the effect of burning fat quickly! Medical sequential decompression elastic socks establish the highest support pressure at the ankle and gradually decrease along the leg. It is reduced to 70%-90% of the maximum pressure of calf and 25%-45% of the maximum pressure of thigh. This gradual change of pressure can make the venous blood of lower limbs return, and effectively relieve or improve the pressure of veins and venous valves of lower limbs.