Match your hat to your overcoat or suit.  In some cases a contrasting tone may work, such as a navy blue suit with a gray hat.

The brims on most fedoras are shapeable. One should wear it in the style they are most comfortable.

Feathers found in hat bands are removable.  A hat without a feather is just as good as one with.  Feathers or not, it’s up to you.

The hat band is a nice part of the hat to match with another part of your garment, like your belt or shoes.  On some hats, the band is interchangeable.

Brims fall into three categories: stingy (short), average, and wide (broad).  Ask your haberdasher which brim would be best for you.