A sport bra is a type of undergarment designed to provide support and comfort during physical activity. It is specifically made for women who engage in sports or exercise, as it offers extra support to the breasts while preventing movement that could cause discomfort or pain. Sport bras are typically made from lightweight materials such as spandex or polyester, with wide straps and an elastic band to ensure a secure fit. They come in various styles and sizes to accommodate different body types and activities, ranging from low-impact exercises like yoga to high-intensity workouts like running or weightlifting.