These fins create unreal drive and speed. The small centre fin adds that extra control while still maintaining the freedom of a twin fin set up.   Performance Core The Performance Core fin is designed to deliver the feeling of a traditional fibreglass fin with the added benefit of greatly reduced weight. The RTM (Resin Transfer Moulding) process produces a lightweight fin with remarkable flex, a smooth feel and an impressive aesthetic.   Board Types: Suitable and recommended for all board types