What is "poffer"

The poffer, toer (Limburg dialect) or North Brabantian hat is a traditional female folk headdress of North Brabant, most famous of the Meierij of 's-Hertogenbosch and of northern Limburg, Netherlands. The poffer was worn only by married women. It was fashionable between the 1860s and the 1920s. In contrast to Zeeland and the more northern parts of the Netherlands, in North Brabant and Limburg there was never any distinctive folkloric costume worn by either men or women, making the poffer the only folkloric garment in this part of the Netherlands.