This is an Australian Olympic Yachting shirt from the Los Angeles 1984 Olympic Summer Games.  This was the official team issued shirt.  I acquired it in trade from one of the Australian Olympic sailors, who was staying in Long Beach, CA, where the sailing venue was.  Shirt does not have a size label on it but it seems to be a Men's Small.  Shirt is in good condition; fabric has no holes or surface blemishes on it, but it is slightly yellowed with age and has a few light spots, but no dark stains.  Still very presentable for the collector.