RothcoVietnam Veteran Boonie Hat

Where is it manufactured?

I measured my head with a tape measure. it is 22.25". what size hat should i get? thanks, gary b.

What's the difference between the 7 1/4 and the 7.25 ?

I want to buy this for my dad for father's day, but am unsure about the sizing. Do these run small or large? Thanks!