Opera hat Opera hat An opera hat, also called a chapeau claque or gibus, is a top hat variant that is collapsible through a spring system, originally intended for less spacious venues, such as theatre and opera visits. Typically made of satin in black colour, its advantage is that it folds vertically through a push or a snap on the top of the hat, in order to be conveniently stored in a wardrobe or under the seat. Invertably, it opens in the same one moment fashion by an easy push from underneath. Its French name "chapeau claque" is a composition of "chapeau",
Top hat part of white tie, and is still made by a few companies, since the materials, satin or grosgrain silk, are still available. The other alternative hat for eveningwear is the normal hard shell. In formal academic dress, the Finnish and Swedish doctoral hat is a variant of the top hat, and remains in use today. The British-American musician Slash has sported a top hat since he was in Guns N' Roses, a look that has become iconic for him. Panic! at the Disco's Brendon Urie is also a frequent wearer of top hats. He has been known to wear them