Please review photos for condition details
You'll notice that the front part of the hat has a darker hue than the back part of the hat. It would appear that the hat was stored folded on itself in half. I have not attempted to treat this so I am unsure if it will come out or not. It does not look like it is deep-rooted stains so it may come out. Either way, the hat looks cool despite the discoloration.
The embroidered logo on the front is vibrant. It is a made in Korea hat
I would estimate this to be an early to mid '80s hat.