The trilby hat consists of a narrow brim (less than 6.5 cm) sloping downwards at the front and upwards at the back. The crown, about 11cm high, is pinched at the front, giving it a teardrop shape and a ribbon is usually wrapped around the bottom of the crown. It is very similar to the fedora hat, which causes some controversy when differentiating between the two. But in general, the crown and brim of trilby hats are narrower than fedoras.
The first trilby hats were made from rabbit fur felt, but nowadays other materials such as cotton, straw, wool, leather, linen or polyester are often used.
The name of the hat comes from the first production of George du Maurier's 1894 play of the novel Trilby. A hat of this style was used, which became known as a "Trilby hat".