Vintage T-Shirt Forum & Community Authentication Appraisals

Hello! I am a total novice to vintage clothing, and received this from a Christmas white elephant party. It is 20" pit-to-pit, and 30" long. Any thoughts on its worth? It feels vintage, the fabric fulls full and soft. There's some very, very light staining on the upper left chest area, but it looks fixable?

Thank you for any help!

Looks fine to me, sweet gift, could even be late 60s:

https://www.defunkd.com/vintage-champion-t-shirt-tags/

I would say in the $100-200 range.