Iron Maiden hats are made from cotton, polyester, and cotton-spandex blends; several listings also specify the fabric as canvas.
The listings report a brim (bill) length of about 2.5 inches and a crown height of about 4 inches.
Care instructions across the listings recommend hand washing and then line drying or laying the hat flat to dry.
The fabric name is listed as canvas for several items. The fabric weight/type is described in the listings as “Year Round Fabric Construction” (quoted from the product descriptions).
The listings mention black and a grey-and-black combination; these are the colors specified in the product descriptions provided.
Logo treatments include distressed printed logos, 3D embroidery, and colorful all-over printed designs.