For over 40 years I have used the Excelsior Veil with the woven open mesh sun helmet.
I have seen several types of materials used for the adjustable head band.
Leather, paper, fabric and plastic.
The current hat I have uses a brown flexable plastic adjustable head band and is relatively new.
I cannot remember where I obtained it.
When I saw it for the first time I thought now they have perfected the material for the head band, not so!
On adjusting the band to my head size the the plastic indexing pins broke off.
I made a copper staple out of bear electrical wire to hold adjustment in place.
Now after several months of use the 1.250" plastic band snapped. I cannot believe it!
It is now being held together with duct tape.
Does anyone know who manufactures these sun hats.