Allied Flag Outdoor Nylon South Korea Country Flag, 3-Feet by 5-Feet by Allied Flag. $37.95. 100-percent heavyweight nylon. Made in the USA. Reinforced fly hem and two sturdy brass grommets. Durable and long lasting. Outdoor Nylon South Korea 3-foot by 5-foot Flag. Each U.N. member flag illustrated is the "government" flag, used by that nation's government and displayed at U.N. headquarters in New York.