A button-up shirt is a type of shirt that features a front opening secured by buttons. Typically made from cotton, linen, or polyester, these shirts come in various styles, including long-sleeve and short-sleeve options. They are versatile garments suitable for both casual and formal occasions, often worn tucked in or untucked. Button-up shirts can be found in a wide range of colors and patterns, such as stripes or checks. They are commonly paired with jeans for a relaxed look or dress pants for a more polished appearance. This makes them a staple in many people's wardrobes.