CarbonSeries: Large ThrusterDESCRIPTION SPECS TRIAL PERIOD AND SHIPPING Designed to give you a fast reacting and powerful fin, our Carbon Series have been engineered with layers of carbon fibre. The result is a very responsive and lightweight fin with a firm flex making it ideal for maintaining speed and releasing energy through turns. A popular choice for surfers looking for stability and control in more powerful waves. Suitable in a wide range of conditions from beach breaks