Am Large 
 This fin's wider base provides increased drive through turns, making it ideal for high performance surfing. The center fin is smaller than the side fins for increased maneuverability. side finsBase: 4.64 inchHeight: 4.64 inchRake: 39.19 deg rear finBase: 4.52 inchHeight: 4.52 inchRake: 37.78 deg