A button-down shirt is a type of dress shirt characterized by its collar, which has buttons that fasten it to the shirt. This design helps keep the collar in place and adds a polished look. Button-down shirts are typically made from various fabrics, including cotton and linen, and come in a range of colors and patterns, making them versatile for both casual and formal occasions. These shirts are often worn in professional settings, paired with slacks or dress pants, but can also be dressed down with jeans. Popular among both men and women, button-down shirts are a staple in many wardrobes, reflecting styles from business casual to smart casual.