The 60's were unquestionably the most popular decade during the autumn/winter 2014 shows. Here are some of the great reasons to adopt this cool fashion. '60s style is not only classic, but it's a trend that can work for any season: Mini skirts are forever chic, and retro shift dresses are ultra-flattering on almost any body type. Peter pan necklaces are cute and very feminine. Mismatched patterns have been a thing for a while now and we all know how utterly cool they look.