In 1952, Hubert de Givenchy presented his first ever collection to the world and asked his friend Bettina Graziani to open the show - the white blouse she wore shot the designer to fame because of how fresh and youthful it was. Clare Waight Keller might just rival that iconic style's popularity with this shirt from the Resort '19 collection. Nodding to the '80s, it's been made in Italy from crisp cotton-poplin and has a detachable neck-tie that's so sharply pleated it almost appears ruffled. Wear yours with tailoring.