Bearded Beanie

A beanie is a brimless cap, that was popular amongst school age boys from the 19th century to the early 1940s or later. Beanies are typically made of wool felt and either have a small embellished visor or, more commonly, no visor at all.
The construction of beanies varies. They can be structured from triangular sections of twill, leather or felt, joined by a button at the crown and seamed together around the sides. Less often, like a yarmulke, the cap is simply a flat circle of cloth with a section cut out to the center and then sewn into a three-dimensional shape. A "technical beanie" is thin and seamless for comfortable use with a helmet, thus is popular among cyclists.