In the modern day, usually refers specifically to the clothing worn and developed during the dynasty period by the upper classes. In general, the clothing of Korea's rulers and aristocrats was influenced by both foreign and indigenous styles, resulting in some styles of clothing, such as the "simui" from China's Song Dynasty, worn by male officials and Court clothing of women in the court and women of royalty were adapted from the clothing style of China's Ming dynasties. The cultural exchange was also bilateral and Goryeo hanbok had cultural influence on the Yuan dynasty.