LONDON, Sept 19 (Reuters) - Irish designer Paul Costelloe took fashionistas back to 1960s California while Turkish-born Bora Aksu celebrated cracks and imperfections at London Fashion Week on Friday.

Perhaps the best part about fashion is that it comes, and it goes. For example, those Doc Martens from the ‘80s that were lost in your closet for decades? They’re now an everyday shoe for Millennials ...