Doppa

 

The Doppa is a cap that normally has a square base

The hat is worn by the Uzbeks of Afghanistan and Uyghurs which are part China.

The hat is derived from a hat worn in Khwarazmians empire which was a more pointed cap, which can be seen in some of the portraits of the last ruler of the empire Jalaleddin Mingburnu.

The hats are quite firm and shaped around a mould

Doppa in the language of the Uzbeks means Cap

Square Cornered Hat

This is one of those hats that I'm having trouble categorising as it was donated, its origin was as a gift to a friend visiting Japan, however, the hat is not Japanese. 

The hat is well made with a tapestry pattern on display.

Inside the hat is a label which google translate fails to recognise, so not sure of the language, something Asian.

This hat is too rigid to be a comfortable Leisure cap, its similar in some ways to Birretta, mostly its unique, at least to me. 

NEW 3rd October 2020 - Finally found what I believe this hat to be, its called an Uzbek Duppi Cap or Uzbek Doppa cap