(Yes, men wore fancy dress as well. Especially men who wanted to wear tights! Click the illustration to enlarge.)
Tight-fitting waistcoat and skirt of white satin embroidered with silver; pale-blue tights, with trunks and sleeves of blue and white striped silk; lace collar and cuffs; cloak of white and blue hat with white plumes.
Source: Masquerades, Tableaux and Drills. New York: The Butterick Publishing Company, 1906.