Jack Robinson Techflex Thruster Jack Robinson's signature Techflex thruster fin is a large size fin in the Rake template category. Developed to suit Jack's style of surfing above and below the lip, he has been putting it through the paces at some of the best waves in the world with incredible success. The Techflex construction is Jack's go-to when the waves are pumping and he desires a bit more control from his fins. Techflex fins are engineered to be stiff and light, providing a solid and engaged feel for powerful surfers or powerful conditions. This setup has a smaller center fin that the side fins for increased maneuverability. Template Category - Rake (drawn out | drive) Construction - Techflex Ride Number - Balanced – 3.2 Size - Large (165+ lbs) Side Fins Center Fin Area 15.99 15.71 Height 4.75 4.74 Base 4.64 4.63 Angle 6.5 SYMM Foil FLAT 50/50