This office sofa is made of high quality thick artificial leather and technology leather, both comfortable, breathable and easy to take care of. Large seat surface, seat bag filled with high rebound sponge. Ergonomically designed, the backrest fits the curve of the back. Inside is the high-quality solid wood inner frame, with high-density spring bag and snake-shaped spring frame, carbon steel high foot stable support, strong load-bearing and shock absorption and deformation resistance.