What fabric was used for the Hatters hat?

I wouldn't know the specifics of the actual material used, but I have a better quality picture that might help Ты out.
All I can say about it is that I'm guessing it's the same type of material used in a normal вверх hat. Almost a jean like thickness, but different texture.
Here's a great homemade video on making the Hatter's hat here: link (And now that the movie's out Ты can make it even еще accurate)
And here's some еще information on вверх hat material: link

For my hat I just used a regular вверх hat as the base and wrapped brown and green шнурок, кружева around it to give it the colour. Then I sewed in all of the stitiching by hand and made it look еще authentic.
Best of luck!!