The main feature of these figures is typically their wooden, papier maché or -more recently- synthetic resin head, whilst bodies are covered in clothing matching the costume's theme.
Its physiognomy and size are variable, and its name-giving varies according to the regions; among the Flemings, it is known by the name of reus (plural: reuzen), among the Picards it is called gayant.
The frame of the body is hidden by cloth, and the arms typically have no structural element to allow them to swing in the air when the giant is turned.
He carries a harness on his shoulder that is linked to the internal structure, and will move and shake the giant in a dance, usually accompanied by a local marching band.
Typically, these dances will include at least two giants, the male gigante and the female giantess, called giganta or gigantona, though some towns have multiple couples.
Gigantes y cabezudos is also the title of an 1898 zarzuela, with music by Manuel Fernández Caballero, set in Saragossa and featuring a contemporary event: the Spanish army's return from the disastrous defeat of the Cuban War of Independence.
The action unfolds during the festival of the Fiestas del Pilar, and concludes with a rousing jota focusing on the stereotypically strong, hardy character of the Aragonese, comparing them to the ever-battling "Gigantes" and "Cabezudos".
England's most famous gianteering tradition is arguably that of the Jack in the Green, however the country is also host to giants more visually similar to those of continental Europe.
Other English giants include Nathandriel, The Morrigan, War and Peace, Hannah Clarke, Gog and Magog, and Mr Fishy.