Vintage 1970s Memphis in May River Race T-Shirt, 1978 WMPS Radio, Mayo Spruce M

Memphis in May Festival River Race tee from 1978 with an illustration of who I'm guessing are DJs from WMPS because their info is on the back. It's a soft single stitch tee Brand - Mayo Spruce Content - 100% Cotton Size - Labeled Large but measures more like a modern Medium so please check all measurements to ensure fit Chest - 20" pit to pit Length - 27.5" Condition - This tee is stamped IRREGULAR and I believe that is because a small flaw I found in the back