- 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.
*If product is out of stock at store level, we will attempt to fill from FCS directly. Please allow up to 1 week processing time for your order to ship in this case.