You are Looking at a Vintage Mizzou Jersey (by Southern Athletic). I Give it a grading of 7, good shape for its age. Tag says size Medium, may fit Small or smaller, listed as a Small(Depending on how tight/loose you wear your clothes)....Read Measurements(compare them to a piece you own and you will get an idea of how it might fit)....My actual measurements are as follows. Top to bottom,23". Across the chest, from pit to pit,18".