Futures Fins - John John Florence Medium Techflex Thruster (2016 Colorway) Thruster fin set (3-Fin) Recommended for Medium Size Surfers - 145lbs to 195lbs (65kg to 88kg) Futures Ride Number rating of 4.5 - Balanced For all-around balanced surfing Area Specs - Side Fins and Center Fin: 14.98sq in