Amish Buffalo Fur Felt Open Crown Fedora Hat. …worn by the Amish, full open crown, and a wide brim. This fedora is made of geniune Buffalo fur, imparting the wearer the piece of mind of donning a durable hat. The Amish hat will take any type of element you throw at it, sun, wind, rain, and snow. â Approx. 5 1/2.