Vintage T-Shirt Forum & Community Authentication Appraisals

Hi I think the shirt is legit, I saw this label on the net but I don't really know where it comes from. I think there's nothing on it in the base. Thank you for your help
And a quick question about the last defunkd article, you need a password but no info on it.

Tough one, I don't know a ton about this niche. Can't find a match in the past sales.