1970s shirts ROCK! Check out this unworn authentic 70s shirt. Featuring the moon and clouds in brown on white – which automatically makes you the STAR attraction, man! 70% acetate and 30% nylon fabric. Long sleeve button down with a big 70メs butterfly collar. The fabric is detailed and special (as you can see in the photos below), and will glint some major shine under the lights on the dance floor or, wherever you might be. This shirt is tagged an XL size. Compare the measurements against a button down shirt you own for the best fit and make history by wearing it.