Hats were crucial to a respectable appearance for both men and women. To go bareheaded was simply not proper. The top hat, for example, was standard formal wear for upper- and middle-class men in the Victorian era. The tall silk or top hat continued for formal day and evening wear; the opera hat (gibus), covered in corded silk, also continued for visiting the theatre, as it could be folded flat and put under the seat. A light grey top hat was worn in the late 1860s for coaching or racing…