Like the other milliners, the hats featured on Henning's site aren't "sitting on the shelf" and ready to ship.

CNN: Crowning glory: The art of Kentucky Derby hats

She sits down with her "ladies" and helps them determine their color, style and "hattitude, " something the milliners are well-versed in spotting.

CNN: Crowning glory: The art of Kentucky Derby hats

After seabird feathers became the ornament of choice for ladies' hats and coats in the 19th century, milliners all but plucked the species clean.

FORBES: Chick Flick

Not to mention a handful of new bespoke milliners in Brooklyn.

FORBES

Milliners take a certain pride in the multiple consultations and fittings required to deliver a hand-made hat perfectly tailored to a particular style and face shape.

FORBES: Haute Heads

Milliners are generally happy to work within a budget, but why are women willing to pay thousands for a hat that they may wear only a few times, or just once?

CNN: Crowning glory: The art of Kentucky Derby hats