SGX The next generation of traditional soft-bottomed inflatable sportboats arrives with the 1998 Achilles SGX models. Loaded with a range of high quality special features, they now offer a more contemporary tube design to go along with their striking two-tone look. Superior features like aluminum floor-boards, fiberglass transom, and deep "V" inflatable keel are standard, along with their super though Hypalon® fabric. All these features plus famous Achilles quality make SGX boats an excellent value.