What is the purpose of that heat seeking metal button on top of your golf hat? Originally in the 1800's the button (actually a rivet) was a way to connect the six panels of fabrics and hide rough edges of stitching on baseball caps. It allowed the manufacturer to quickly finish the cap. A long, long time ago when production methods improved and automated sewing equipment was introduced the need for the metal button was eliminated but the 100+ year-old design specs have never changed. As a result golfers are still wearing heat magnets on top of their heads. Kinda “old school” like wearing 100% cotton shirts don't ya think?
Some hat history.
Flat caps were almost universally worn in the 19th century by men throughout Britain and Ireland, and versions in finer cloth were also considered to be suitable casual countryside wear for upper-class English men (hence the contemporary alternative name golf cap).
It was not until the late 50s and and early 1960's baseball style caps became the norm for golfers here in the US.