High density memory foam is a type of foam that is made using a higher concentration of polyurethane and other chemicals, which increases its viscosity and density. This makes it an ideal material for insoles, as it provides superior durability, support, and comfort. It has slow rebound, breathable, high stability, efficient shock absorption, good protective effect is mainly used for insoles, mattresses, pillows, backrest, cushion, sporting goods, shoe materials, packaging of all kinds of high-end products.