All women are required to wear a long black cloak that covers all but the hands and face called an abaya in public. (Modest dress is compulsory for women in Islam but the color black for women and white for men is apparently based on tradition not religious scripture.[43]) Saudi women also normally wear a full face veil, such as a niqāb. Women's clothes are often decorated with tribal motifs, coins, sequins, metallic thread, and appliques. Foreign women are required to wear an abaya, but don't need to cover their hair.