This elegant robe and petticoat are fine examples of women's formal day wear in the early 1760s. The sack was a popular style of dress, with the fabric at the back arranged in box pleats at the shoulders and falling loose to the floor with a slight train. The wide square hoop worn under the petticoat is slightly old-fashioned, but appropriate for formal occasions. In cut, fabric and design, the ensemble is a fine example of rococo design in fashion. The white silk painted in a variety of bright colours reflects the rococo palette, while the scalloped sleeve cuffs and gathered robings create a decorative surface pattern.

The silk was woven and hand-painted in China. The design of fanciful flowers shows the Western influence; the Chinese artists were using patterns send from Britain to make silks expressly for the European market. The outlines of the design was first printed on the reverse of the silk and the areas to be painted on the right side of the fabric covered with white lead paint. Pigments made from materials such as malachite (green), orpiment (yellow) and vermilion (red) delineate the floral pattern.