Slacks are a type of men's trousers characterized by a loose or relaxed fit, typically made from lightweight, smooth fabrics such as wool, wool blends, cotton, or linen. The term "slacks" originates from the old Saxon word "slak," meaning "loose," reflecting their comfortable, non-tight construction
. Slacks are generally considered more casual or semi-formal compared to dress pants. They have a relaxed silhouette with straight or slightly tapered legs, offering ease of movement and comfort. While slacks can be worn in professional settings, they are less formal than dress pants, which tend to have a more tailored, structured fit with design details like pleats or creases
. Slacks are distinct from chinos and jeans; chinos are casual cotton pants with some elasticity and a more casual cut, whereas slacks are smoother, dressier trousers often made from wool or wool blends
. They are commonly paired with blazers, dress shirts, or even smart casual tops, making them versatile for various occasions from business casual to semi-formal events
. In summary, slacks are comfortable, loose-fitting dress trousers suitable for casual to semi-formal wear, typically made from wool or similar fabrics, and distinguished by their relaxed fit compared to more tailored dress pants
