The sleek and streamlined appearance, the back frame is formed as a whole, and the hollow single frame design on the back has strong load-bearing force. The back frame adopts patented research and development technology to create an ultimate curve that surpasses the perfect body shape, making the back fully fit the curvature of the human spine curve. The support force of the transparent mesh has great toughness and elasticity, making the back frame and transparent mesh of the chair fully fit the entire back, making it feel very comfortable and comfortable!