ARMET (diminutive of Fr. arme)  , a form of helmet, which was developed out of existing forms in the latter part of the 15th century . It was round in shape, and often had a narrow ridge or comb along the top . It had a pivoted or hinged vizor and nose-piece, and complete chin, neck and cheek protection, closely connected with the gorget . It is distinguished from the basinet by its roundness, and by the fact that it protects the neck and chin by strong plates, instead of a " camail " or loose collar of mail; from the salade and heaume by its close fit and skull-cap shape; and from the various forms of vizored burgonets by the absence of the projecting brim . It remained in use until the final abandonment of the complete closed head-piece .