- Matt 'Mayhem' Biolos's specialty quad fin set.
- High area quad keel set adds bite and control to hybrid boards with wide tails, without sacrificing pivoting capabilities.
- Designed to fit the FCS II Fin System.
- Recommended for all board types including modern fish and hybrid models with moderate-to-low rocker.
Performance Core (PC) fins are made using a multi-layered resin transfer molding process. The flex pattern in PC fins extends progressively from the base through to the tip, helping the surfer to maintain drive and hold through a turn. This versatile fin material is light, and can be used in a variety of different conditions.