The Birgitta cap is the women's best headwear!
Detail from Morgan Picture Bible (page 16) the Morgan Library & Museum
Image of two women in a fight and on the ground lays a cap.
My cap. Because I'm shorthaired it becomes very flat at the back of the head. The pattern I have used you can see in Åsa Vävare's material (in Swedish) where she gives her thoughts about the cap. The more you can wrinkle the more hair you can fit underneath.