Crestliner builds a wide range of aluminum fishing, hunting, and utility boats. They have both freshwater and saltwater-specific lines, as well as many models specialized to chasing specific species of fish. Hulls are built around an extruded, full-length keel, and tongue-and-groove sections of the boat are joined with continuous welds from bow to stern. No wood is used in the construction process. Crestliner also offers an unusually strong warranty on their boats, covering everything from stem to stern for three years, and the hull with a transferable lifetime warranty. Crestliner has also received the NMMA Customer Satisfaction award for six years running. Today operating under the Brunswick banner, this company has been building boats since 1946.