Swimming fins, also known as swim fins or flippers, are essential swimming aids worn on the feet to enhance propulsion and maneuverability in water. They are typically made of lightweight yet durable materials like rubber or plastic, with a streamlined design to minimize drag and maximize efficiency. Swimming fins come in various shapes and sizes, catering to different swimming styles and skill levels. They are widely used in recreational swimming, snorkeling, diving, and competitive swimming to improve speed, endurance, and technique by increasing the surface area of the feet and providing added thrust with each kick.