Clothing and footwear
Modesty is expected at every shrine, so pack loose, full-coverage clothing rather than relying on buying it locally. Women typically wear an abaya with a headscarf; men should avoid shorts and sleeveless tops. Footwear matters more than most travelers expect, since shrine visits and any part of the Arbaeen walk both involve significant time on your feet, so bring shoes that are already broken in rather than new ones.