This product filled with feather silk velvet and space cotton, it still has a highly elastic core of high - density sponge, ensuring a springy response and no fatigue even after long sitting. The integrated high - backrest effectively supports the neck, waist, and back. The detachable armrest covers are soft and can be freely placed. The eco - cloud artificial leather replicates the delicate texture of cowhide, with a warm luster and delicate touch. The frame is made of pine and other materials.