Sweatpants are a type of casual pants designed for comfort and relaxation, typically made of soft and stretchy fabrics like cotton or fleece. They often feature an elastic waistband and cuffs at the ankles, providing a relaxed and comfortable fit. Sweatpants come in various styles, including loose or tapered legs, and can have pockets or drawstrings for additional functionality. They are commonly worn for activities such as exercising, lounging at home, or running errands, and are a popular choice for both men and women.