The FCS Modern Keel PG Large Black Twin Fins are a high-performance modern keel twin set built for traditional fish shapes — featuring an upright keel design with lower sweep than conventional wider-base keels, allowing it to pivot in a tighter radius without sacrificing the raw speed and control that keels are famous for. High area and depth keeps the fins engaged on the open face and through roundhouse cutbacks at full rail.

• Template: Modern Keel — upright design with lower sweep (rake) than traditional keels; allows tighter pivot radius without losing drive
• Construction: Performance Glass (PG) — woven fiberglass for a lively, naturally-flexing twin fin feel
• Area: High area and depth — delivers control when pushed hard on the open face; maintains tremendous trim speed through long cutbacks
• Size: Large — designed for heavier surfers on traditional fish and twin fin shapes
• Colorway: Black
• Board Compatibility: Fish, funboard, and twin fin boards — FCS II compatible
• Fin System: FCS II — tool-free installation
• Sold as: A pair (left + right)

Sizing Note: Modern Keel PG Large suits heavier surfers on traditional fish shapes who want a keel that pivots more aggressively than conventional wide-base keels. Confirm FCS II twin box configuration before ordering.

Care: Rinse in fresh water after each session. Inspect keel edges for chips. Store in a fin wallet between sessions.