Back: If it is difficult to tell from the photo, we will state it. Listed size : M but feels like U. Please be sure to check the dimensions. Shoulder width (sleeve seam to sleeve seam): Approximately 44 cm Width (armpit to armpit): Approximately 49 cm Length (back collar to hem): Approximately 59 cm Sleeve length (sleeve seam to sleeve tip): Approximately 60 cm Please allow for some slight errors.