70s 80s vintage caterpillar t-shirt

This shirt is adorable! I love it, but I just don’t wear it as I’m not much of a t-shirt person. The fact that it’s vintage gives it extra charm! It has a few light stains as pictured. I would describe the condition as broken in but with plenty of life left. It’s somewhat see-through, but I think that’s how it’s made and not a sign of wear. The tag says size medium, but I think it’s more of a modern small or so.