This is not a lamp shade, its a genuine reproduction medieval straw hat from the 13 or 14th Century, that is in fact very comfortable and cooling in the summer like most straw hats.
This was purchased from a polish trader at the Tewkesbury medieval fair in 2015
See this link
See this link
This style of hat was worn by both men and women probably field workers if you look at contemporary drawings. ( See here )
