Al Merrick's 'AM' AirCore shaper fin designed for radical, progressive surfing. The raked side fins produce exceptional speed and drive, while the smaller centre fin on the medium and large template offer quick release through turns. Geometry Merrick's template has a high degree of sweep with a narrow elongated tip. Flat foil side fins, smaller centre fin (medium size). View the FCS Fin Data page for Base/Depth/Area/Foil information. Material Performance Core + AirCore Fins with AirCore Technology feature a pressed polyurethane foam core that mimics the geometric foil of the fin. AirCore technology reduces the amount of fiberglass required in the RTM moulding process making it much lighter while allowing total manipulation of the flex. Ideal Conditions Hollow steep waves, punchy beach breaks. Board Types Performance boards with deep concaves and moderate-to-extreme rocker. Fin Family Carver: Powerful, drawn-out turns with added hold. Size Medium (65Kg - 80Kg / 145 - 175 Lbs)Large (75Kg - 90Kg / 165 - 200 Lbs)