[Sax. hcet.] The principal outdoor covering for the head. Hats are chiefly made of felt, silk, or straw. For felt hats the fur of rabbits and hares is used, and for commoner kinds sheep's wool. Silk hats are made of two or three layers of calico saturated with varnishes, moulded into shape on wooden blocks, and covered with fine silk plush. In the manufacture of straw hats the straw commonly used is that of wheat or barley.