Is it true that WeChat merchants bought aj and said it was cowhide?

Wechat merchants bought aj and said it was cowhide, but it was not true. According to relevant information, aj is not genuine leather. The commonly used leathers of Aj include litchi skin, classic smooth leather, artificial leather, patent leather, suede, cowhide, black and red toes, thread, green toes, purple toes and cinder shoes.