Vintage T-Shirt Forum & Community Authentication Appraisals

Can you help me check my nirvana shirt? Some people said legit and some said it is fake. I think this was dyed to gray that’s why the tag and color of the shirt is gray.

Any opinions and help will be greatly appreciated. Thank you.

its fine to me, But if someone says this is fake, please provide a reason. For me, if the condition is like this, it's quite difficult to check, but at least there's nothing suspicious about the material, tag, and screen printing.