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Expect one smarter Captains Night on board, during which the men are advised to wear jackets, though ties are optional, and women opt for dresses and smart trousers

The scalloped short sleeves and crochet ribbons on the A-line skirt are charming additions to this more modest look

Lydia Edwards, fashion historian and author of How to Read a Dress: A Guide to Changing Fashion from the 16th to the 20th Century

A formal summer sundress at tea or knee length with sandals

Per online reviews and a WH editor, they're actually super comfortable thanks to their 4mm EVA foam footbed

According to many of the stories in the mainstream media, there is actually a scientific explanation for how people could see different color schemes of the dress while looking at the same photograph