I think those FQs look more like "mod" style fabrics than the true 70s. It's fairly popular with the younger-than-the-ones-who-lived-in-the-70s crowd. :)
http://www.google.com/images?q=mod+f...ls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&source=og&sa=N&hl=en&tab=wi&biw=1280&bih=602