Opera hat characteristic snapping sound heard upon opening a gibus suggested a third name, the "chapeau claque", "claque" being the French word for "slap". 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
Top hat players to mark their position as they progress around the board. In Freemasonry, as practiced in North American lodges, top hats are often associated with the position of Worshipful Master as he is the only member allowed the privilege of wearing a head covering to signify his leadership within the lodge. However, the Master is not obliged to wear a top hat, and can wear whatever type of hat he deems appropriate for the occasion. This is because there are varying degrees of formality in different Lodges, from formal wear to everyday dress. It is also common for a Worshipful