A button-up shirt is a type of clothing that features a front opening secured by buttons. Typically made from materials like cotton or polyester, these shirts come in various styles, including long-sleeve and short-sleeve options. They are often worn in both casual and formal settings, making them versatile wardrobe staples. The design of a button-up shirt usually includes a collar and a hem that can be tucked into pants or worn untucked. Commonly associated with business attire, they can also be paired with jeans for a more relaxed look. Popular brands include Tommy Hilfiger and H&M.