What is smokers cap?

A smoker's cap is a type of headwear worn by smokers to prevent their hair, clothing, and surrounding areas from being affected by smoke. It is typically a lightweight cap designed to cover most of the head and features a small opening or hole that allows the smoker to hold their cigarette or cigar without it falling out. Some smoker's caps also have a visor or small brim to shield the face from smoke. While not as common as they once were, smoker's caps can still be found in specialty tobacco shops and online retailers.