Vintage T-Shirt Forum & Community Authentication Appraisals

Posted this a while ago, had a vintage shop owner say it was a fake because of the print and double stitch? I was thinking that it is still an authentic one because of the different blanks of cronies eras, appreciate any help!

It's okay, people's perceptions are different, but some materials use different materials due to material limitations (material for size XXL is not available) so they use other materials, in terms of screen printing, there is nothing suspicious, everything is okay in my opinion.

Thanks!