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About the Product

Designed by 11x world champion Kelly Slater in collaboration with Outerknown, the Endorfins KS1 Tri-Quad Fins in the exclusive camo pattern combine elite performance with a unique visual identity — for serious surfers who don't compromise on style.

Designed for quick pivot and precise control:
The upright and vertical template was developed for tight turns, immediate response, and efficient changes of direction — ideal for hollow waves and critical sections where every millisecond counts.

High-performance construction:

  • Carbon inlays — increased strength and optimized flex
  • Core composed of ~90% air — extreme lightness without losing structural rigidity
  • Excellent projection and sensitivity — consistent performance in different conditions
  • Compatible with the Futures system (Single Tab) — easy integration with boards equipped with this setup

Specifications:
Brand: Endorfins | athlete: Kelly Slater | system: Futures Single Tab
Configuration: tri-quad | size: large | color: camo (Outerknown)

The fins of the greatest surfer of all time. Feel the difference in pivot, control, and speed.