Cap, also knows as Ivy cap, cab driver hats, newsboy cap, golf cap, driving cap, and big apple cap.
Darker colors were worn in the winter, while Light colors were worn in the summer.
Overall, the 1920s cap looks baggy, not the tight narrow Ivy caps you see today.
Add Cap as your accessories to give vintage-look at your style.
*information is excerpt from http://www.vintagedancer.com