Designed by Britt Merrick, the FCS II CI Upright PC Quad Rear Fin Set are shaped to pair seamlessly with the upright CI side fins. Featuring a neutral-raked template, they deliver a solid balance of control and stability while still allowing for tight, pivot-style turns. The 50/50 foil enhances directional control and confidence, making this set a reliable choice for surfers looking to fine-tune their quad set
Fin Size Detail
| Size | Fin | Depth | Base | Area | Sweep | Foil |
| Medium | Quad Rear | 4.17″ | 4.04″ | 11.70″² | 33.3° | Flat |
| Large | Quad Rear | 4.27″ | 4.14″ | 12.29″² | 33.3° | Flat |
