 Dior's Y-line collection of autumn 1955 showcased cartwheel hats, paired with pearls, princess-line dresses and stoles.While the size and shape of hats could be extreme, such designs were made not just for day but evening wear; the Victoria and Albert Museum archive includes a Christian Dior cocktail frock designed to be worn with matching tulle cartwheel hat.High-profile wearers of the style included Queen Elizabeth who wore a straw cartwheel shape on her tour of Australia the year after her coronation – although her hat was less extreme than some of the Dior models.