The FCS CI Upright PC Medium White Thruster Fins are a collaboration between FCS and Channel Islands Surfboards — a template that rewards committed, progressive surfing in punchy, hollow conditions. The upright stance generates fast, tight directional changes, giving you the response to snap off the lip or whip through steep sections that would bog down a more raked design.

• Template: CI Upright — high-angle, upright design developed with Channel Islands for speed and tight turns in hollow surf
• Construction: Performance Core (PC) — fibreglass over a honeycomb core for a firm, lively flex pattern
• Size: Medium — recommended for surfers approximately 65–80kg
• Ideal Conditions: Hollow, steep waves and punchy beach breaks where fast, reactive surfing is required
• Fin System: FCS II compatible — tool-free plug-and-play installation
• Colour: White
• Set Includes: 2 side fins + 1 centre fin (thruster set)

Sizing Note: FCS Medium fins suit surfers approximately 65–80kg (143–176lb). The CI Upright template excels when paired with boards that have deep concaves and moderate-to-extreme rocker — think Channel Islands shapes or any performance shortboard built for hollow surf.

Care: Rinse fins with fresh water after each session. Store out of direct sunlight. Inspect FCS II plug tabs periodically for wear or cracking.