Vtg Rock Island Arsenal Illinois Red Cap Snapback Hat

Vintage trucker hat. Tag says "YA" and Made in Korea. Brim is flat and crisp, sweatband inside does not show any staining. Not sure if it was ever worn. Foam inside has NOT deteriorated and still seems quite pliable. Graphic on the front looks to have a box around it from when it was imprinted. White on white but the box is noticeable. Registration on the graphic is slightly off on the red. Non-smoking home. Please see all pics and ask any questions before purchase!