X MEASUREMENTS: For your convenience, I provide these measurements as a general fit guide only (Measured in un-stretched state flattened). You should compare these measurements, listed below, to a similar item that you currently own. Please make sure that tag sizing vary and it is very important to read all detailed measurements I provide. ACTUAL MEASUREMENTS ARE IN IMPERIAL AND METRIC: UNDER ARMS (ARMPIT TO ARMPIT): 20.5'' (52 cm) MIDDLE (across chest): 20.5" (52 cm) SLEEVE LENGTH…