A jib (also spelled jibb) is a triangular staysail set ahead of the foremast of a sailing boat. Its tack is fixed to the bowsprit, to the bow, or to the deck between the bowsprit and the foremost mast. Jibs and spinnakers are the two main types of headsails on a modern boat. Modern yachts and small craft On a boat with two staysails the inner sail is called the staysail, and the outer (foremost) is called the jib. This combination of two staysails is called a cutter rig (or a yankee pair) and a… (More on Jib)