The foresail is a triangular sail located at the front of a sailing vessel. It is the second largest sail on a boat, and is usually set between the mast and the bow. The JIB is a smaller sail located at the front of the boat, and is typically set between the mast and the foresail. The JIB is used to help control the direction of the boat, and is often used in combination with the foresail to increase the speed of the boat.