It does not contain formaldehyde and heavy metals. It is made of imitation leather. In terms of the performance of leather, its windproof, waterproof, cold resistance and wear resistance are better than leather, and its texture, color and luster are more than leather, but in terms of texture, color and luster. There are certain defects in texture and breathability, which are slightly inferior to genuine leather and superior to beef tendon leather and other artificial leather materials.