The dress code in primary and secondary grades for boys comprises dark blue, khaki, or black shorts with a white open-collar short-sleeved shirt, white ankle socks or long dark socks, and brown or black trainers. Female students, wear a knee-length dark blue or black skirt, and a pale white blouse with a loosely hanging bow tie. The bow tie is dropped in favour of an open-necked pale blue shirt from Matthayom 4.