FCS II GL-1 SUP Tri Quad Fin Set Published February 11, 2017 at 420 × 330 in SUP Fins ← Previous Next → FCS II GL-1 SUP Tri Quad Fin Set FCS II GL-1 SUP Tri Quad Fin Set Gerry Lopez ​versatile tri/quad. Suited to power surfers who like to carve and push hard against their fins.