I lost my dress blues 40 years ago, and even if I had them, I couldn’t fit them..
According to a dear friend who was a mortician, they customarily slit open the back, think hospital gown. They’d fit.
For 20+ years, I had several sets of uniforms, dress blues and fatigues, all neatly cleaned, starched, in moth balls up in the attic. I’d pretty much forgotten about them. One day, in the mid 90’s, my two then teen-age daughters found them, and liberated them, and wore them, in various iterations, to high school for several months. I consoled myself as there was no way I could ever get into them again. I’m in pretty good shape, still am, but gawd..we were all skinny bastards back then.