A button-up shirt is a type of shirt that features a row of buttons down the front, allowing it to be fastened securely. These shirts typically have a collar and can come in various styles, including long-sleeve and short-sleeve options. They are made from a variety of fabrics, such as cotton, linen, or polyester, making them suitable for both casual and formal occasions. Button-up shirts are versatile wardrobe staples often worn by both men and women. They can be paired with jeans, dress pants, or skirts for different looks. Additionally, they can be layered under sweaters or jackets for added warmth and style.