I got a Brooks Brothers shirt from the thrift store that says "Brooks Brothers Makers" on it, is made in the USA, and the size is 15Â½-5. It fits at the shoulders and I'm going to get it tailored to fit everywhere else, but I was wondering what the "5" meant. I'd expect a number somewhere between 32 and 35. Also, eBay has one that is 15Â½-3 for cheap. I'm wondering if it is also likely to fit in the shoulders.