BYU basketball jersey I believe to have been for their mascot, Cosmo. I am a college basketball game used jersey collector and acquired this jersey with no backstory. I can tell it’s authentic to the era, but that’s it. The jersey has many loose threads, a few stains, all leading me to believe this was worn by Cosmo at BYU basketball games about 20 years ago.

Very unique piece, ask if you have any questions!