The product is light in weight and has good toughness. It does not deform after repeated bending tests and can bear 150kg of strong load. The memory foam cover is made of light and breathable fabric, which does not shed or pill. The double-sided hollow design allows ventilation in summer without sweating. The high-density memory foam is soft and resilient and not easy to collapse. The sitting feel is moderately soft and hard. The three-in-one relaxation and decompression of waist protection, straight back and buttocks shaping, the cushion surface simulates the shape of the buttocks, reduces the squeezing of the buttocks, and supports the partitions for scientific pressure relief. The edge of the cushion is U-shaped. Bring your legs together to avoid crossing your legs, improve scoliosis and bending. Correct bad sitting posture, easily maintain the correct sitting posture to reduce the burden on the waist and back, and develop an elegant posture.