FCS II CI Upright Tri Fin Set

Instant speed, tight pivot in the pocket, and maximum agility with the FCS II CI Upright Channel Islands fin set.

Designed in collaboration with Channel Islands Surfboards, the FCS II CI Upright is intended for surfers looking to instantly recondition their board's trajectory. Its upright template reduces rake to promote tight turns, rapid acceleration, and a super agile ride in critical sections.

Crafted with Performance Core (PC) technology—a lightweight honeycomb core with fiberglass—they provide a uniform, highly responsive flex. Their FCS II anchoring system allows for quick, tool-free snap-in attachment.

Key Features:

• Tri-Fin (Thruster) Configuration: Complete set of 3 fins.

• CI Upright Template: Exclusive Channel Islands upright design for vertical, instant turns.

• Performance Core Construction: Lightweight structure with reactive, high-performance flex.

• FCS II System: Direct snap-in attachment without keys or screws.

• Recommended Use: Fast waves, hollow beach breaks, and short performance or hybrid board models.