The deep slot design of the air bag, with moderate space, reduces the contact surface of the buttocks, enhances ventilation, reduces sweating and mugginess during cycling and eases the pressure on the prostate gland during cycling and protects sensitive parts.Full wrap for more stability, cross strap Velcro bonding. Experimental results can be seen that in the two points of the two points of the pressure concentration before the decompression cushion the pressure is dispersed after use, and the dispersed decompression is about 80%.The zone buffer is designed for the muscle groups in contact during cycling. The gas between the air bags flows to each other to produce anti-gravity effect, dispersing 80% of the pressure of the buttocks, cushioning, absorbing shock, protecting the tail vertebrae and ensuring the comfort of long-term cycling. The 3D three-dimensional air bag is up to about 3cm, and the mutual flow of gas between the air bags makes the cushion soft and comfortable, and has a certain cushioning and impact resistance, which can effectively disperse the compression on the buttocks and protect the tail vertebrae.