Port Authority Stirrups Clothing Hat Cap Mens Adjustable Horses Country Western. The Port Authority Stirrups Clothing Hat Cap is a stylish and versatile accessory for men who love horses and the country-western lifestyle. Made with a solid brown color and a western theme, this adjustable baseball cap is designed to fit comfortably with its one-size-fits-all convenience. Perfect for outdoor activities or casual wear, this cap is a fashionable choice for those who appreciate a touch of equine flair in their attire.