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About the Product

Developed with Kelly Slater, eleven-time World Surf Champion, the Endorfins KS1 Large fins are made for surfers who want maximum responsiveness and control during the most technical maneuvers. With an upright template, these fins respond quickly, pivot with precision, and allow you to explore every section of the wave with confidence.

Who these fins are for:

  • Surfers who prefer short turns, quick snaps, and a more vertical surfing style
  • Hollow, fast waves with a defined pocket
  • Those who want to maximize the board's pivot and responsiveness

Performance and versatility:

The profile developed by Kelly Slater also allows for experimentation with different configurations — it is common to combine the rear Quad fins with other models to customize the board's behavior and achieve different surfing sensations.

Endorfins Construction:

Lightness, strength, and progressive flex in one package. Energy transmission is efficient, and response is consistent throughout the entire session — session after session.

Compatibility:

Futures Single Tab system, with a secure fit and reliable performance in any condition. Thruster or Quad configuration available.