Vintage Big Mac plaid button front flannel. Made in the USA.60s/70s. 100% cotton. Tagged as an XL, Measures as a large.,1970s Big Mac Flannel Shirt | Worne,Vintage 1960s 70s Big Mac JC Penney Brown Red Green All Cotton Plaid Flannel Heavy-Weight Button Up Shirt Men’s Large Tall,70s BIG MAC FLANNEL SHIRT MADE IN USA🇺🇸 Size M-,70s Big Mac Flannel - Etsy UK