VTG 70s K-Mart Button Up Knit Dress Shirt Short Sleeve Disco Collar Sz 16 Mint The product is a vintage 1970s K-Mart button-up knit dress shirt in mint green, featuring a short sleeve disco collar in size 16. Made of polyester and originating from Taiwan, this original piece offers a retro look perfect for everyday wear. The shirt embodies the disco era style and is a unique addition to any man's vintage clothing collection.