Early model of the South Korean Marine duck hunter uniform, worn around 1966 to 1969 until the green variant came out. The shirt and the cap are faded and definitely saw action in? This is a great museum quality piece!21 inch armpit to armpit (US medium) please allow a small margin of error. The arms are shrunken but if you fold it, its still a nice piece on a display and in vietnam they rolled their sleeves anyway. Length 32 inch (US Medium).