The boat (or bateau) neckline has a slashed cut across the chest to reveal the collar bone, and was favoured by Audrey Hepburn (she wore this style in Funny Face). Of course Meghan Markle's wedding dress by Clare Waight Keller for Givenchy had a bateau neckline, and it is a theme that has ran through her royal wardrobe so far in 2018. Just yesterday Meghan wore a khaki dress by Ralph Lauren to Prince Louis's Christening which had this slashed neckline, and she has also worn bateau necks styles by Brandon Maxwell, Givenchy, Theory and more.