Design is The Soul for a Plastic Chair. The seat is made of original environment-friendly polypropylene material, as a result, the All Plastic Chair is strikingly compact and graceful, and the combination of plastic components makes it extraordinarily comfortable. Whereas the frame consists of a rigid high-strength polypropylene, the seat and backrest are more resilient and adapt to the contours of the sitter’s body. The backrest is connected to the frame by twin shafts cushioned with rubber buffers, which allow it to flex gently in response to the sitter’s movements, further enhancing the chair’s comfort.