Reversible hat

The fabric hat is reversible so you can a brown or red hat 

I would hazard a guess that the hat is a medieval style, the kind that would normally be made from wool.

The hat is basically a square bag, that follows the shape of the head when worn and leaving 4 corners at the crown where there is an air pocket above your head.

Many shapes of historical hats do not have names, you could call it a beanie of shorts

I would say this hat suitable for any period from at least the 13th to 18th century. 

Reversible Acorn Hat

This medieval style acorn hat is reversible, 2 hats for one

I'm not sure why I'm pulling a odd face, some hats make me do this.

Below I'm studying the complexity of turning something inside out or outside in or perhaps outside out since both sides are the outside of the hat, who knows.

Acorn hats appeared mainly in the late 15th Century although they existed before and after this period.

The style of these hats can vary considerable both in hight and style, some are skull tight, some are comedy tall, this one fall in between.

Reversible Acorn Hat by Mike The Hat