Green / White Nike Golf "One" Ball Cap with Hook & Loop Adjustable Closure OS

Green / White Nike Golf "One" Ball Cap with Hook & Loop Adjustable Closure OS There is some yellowing/discoloration on parts of the white, shown in photos. It may come out with washing, but I haven't tried. I don't believe it's sweat as it's mainly on the bill which wouldn't be in contact with skin. Otherwise very good condition