A plaid shirt is a type of clothing characterized by a pattern of crossed horizontal and vertical lines, creating squares or rectangles. This design often features multiple colors, making it visually appealing and versatile. Plaid shirts are commonly made from cotton or flannel, providing comfort and warmth, which makes them popular in casual and outdoor settings. Plaid shirts have a rich history and are associated with various cultures, including Scottish heritage, where tartan patterns originated. They are worn by people of all ages and can be styled in numerous ways, from layering under jackets to being worn alone with jeans or shorts.