Jack Robinson Honeycomb Thruster (Large)Jack Robinson Honeycomb Thruster Jack Robinson's signature Honeycomb 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 Honeycomb construction features a balanced flex pattern that provide a perfect blend of lively and stable performance in all wave types. The