Colour: Carbon Blue * Thruster Fins * Medium size * Balanced fin * Ride Number: 5.5 * Air infused making it lighter than Honeycomb * All Alpha products are designed and manufactured exclusively in Huntington Beach, Ca USA. Side Fin * Area 15.12 * Height 4.56 * Base 4.35 * Foil FLAT Centre Fin * Area: 15.12 * Height: 4.56. * 4.35 * SYMM A superb fin is now here! The F6 Alpha is a combination of a responsive flex characteristics of C6 plus the neutral F-Series template. It is also manufactured with a carbon and air infused composite materials making it lighter than the Honeycomb.