In Hong Kong, parasols are still in fashion
It's a hot, sunny, not to mention humid day. You, in your cut-offs, sipping cool, refreshing water suddenly notice that the young women zooming by you are either holding umbrellas or wearing cardigans. At this point, you wipe your brow and think you are hallucinating though in actual fact had just happened to inadvertently experience culture shock. Sun is plentiful, and so umbrellas - used as parasols - are used to keep the sunshine at bay. Cardigans, that aren't as good or comfortable an idea, are worn for the same purpose - to avoid sun intake.