Flippers are a type of aquatic appendage used for swimming. They come in a variety of shapes and sizes, and can be made from a variety of materials. The most common type of flipper is the paddle, which is a flat, wide piece of material that is attached to the foot and used to propel the swimmer through the water. FINS are another type of flipper, which are usually curved and more narrow than PADDLES. They are typically made of rubber or plastic and are used to help the swimmer move more quickly and efficiently through the water. Swimfins are a combination of PADDLES and FINS, and are designed to provide the swimmer with maximum speed and maneuverability.