The dominant helmet during much of the 15th century, the Armet gradually evolved into the first truly international style of helmet, the close helmet. Armets were built of a snug-fitting bowl that came to just above the ears, fitted with cheek plates that attached by hinges to this bowl. Usually the chin pieces clasp in the front and secure in the back along a strip of
steel that extends from the shallow skull bowl. The bowl itself is often reinforced with an additional layer of steel across the brow, and a
visor fills in around the nose and eyes to make an exceptionally functional closed helmet. For some unknown reason, a disc of metal was sometimes attached to the back of these helmets; the purpose of this
rondel is unknown. The armet succeeded the
bascinet as the most common helmet in Europe, taking elements from the
great bascinet . They were exceedingly popular in Italy, France and England, while the Sallet enjoyed great popularity in those regions and also in the German lands as well.