Fins Endorfins KS1 Kelly Slater Medium Tri Fins

Slater Designs KS1 Futures Fins – Vertical Pivot Redefined by a Surfing Icon

The Slater Designs KS1 Futures Fins are a vertical-performance fin set developed by 11x World Champion Kelly Slater. Designed for the Futures (Single Tab) system, this set is built to deliver explosive pivot and rapid response in critical conditions.

Wave Type
This is Kelly Slater’s original fin setup, engineered with a vertical template for tight arcs and lightning-fast direction changes. Perfect for barreling waves and tight pockets, it’s the ideal choice for surfers who favor direct lines, precision, and total control.

Fin Characteristics
Featuring a true vertical outline for unmatched pivot, the KS1 is a high-performance choice. Our team often pairs the quad rears from this set with other front fins to experiment with new sensations and refine their setup.

Advanced Carbon Construction
Built with cutting-edge carbon layers for enhanced flex and durability, the core of each fin is made of 90% pure air — resulting in a fin that’s incredibly lightweight, naturally buoyant, and tuned for elite-level performance.

Compatibility: Futures (Single Tab)
Template: Vertical / Pivot
Best For: Barrels, tight maneuvers, pocket surfing
Construction: Carbon with ultra-light air core
Flex: Responsive with controlled rebound

Engineered for critical sections. Designed by the greatest.