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Futures F4 Alpha Small Tri Fin Set

sku# 233081
Futures - F4 Alpha Small Tri Fin Set
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Product Info

The Futures F4 Alpha Small is made for neutral, balanced, and fluid riding. Constructed with NetPlus sustainable materials and carbon and air infused technology, the responsive flex of the F8 provides a ride you can get behind.

Product Details


Alpha ConstructionMolded carbon fiber made in Huntington Beach, California that delivers every bit of performance you’d expect from an upgrade fin at a Balanced Ride Number. Incredibly lightweight & resilient, Alpha is the first of its kind; created using one-of-a-kind materials and new technologies developed by Futures.

Compound 6A brand new material blend that is lighter than Honeycomb and the next step in innovation for Futures. Infused with the resiliency of carbon fiber and the lightness of air.

Carbon InfusedFutures infused carbon fiber which has a higher strength to weight ratio than fiberglass. By replacing fiberglass with carbon fiber, the Alpha line is more lightweight & resilient than your standard fiberglass or plastic injection fins.

Flow Texture | Decreased Drag and Fin HumAfter testing various surface geometries behind a jet-ski, Futures found a 3D flow texture that controls the separation pattern and influences the boundary layer to reduce the hydrodynamic turbulent wake drag. The result is a more predictable and efficient flow with a significant reduction in the audible whistle heard while surfing called “fin hum.”


Side FinsHeight: 4.37" / Base: 4.22" / Area: 14.22" / Foil: Flat

Center FinHeight: 4.37" / Base: 4.22" / Area: 14.22" / Foil: SYMM


Ride NumberBalanced – 6.4

Template CategoryNeutral (balanced/fluid)


One Center Fin

Two Side Fins


  • Material: Carbon Fiber
  • Fin Category: Thruster (Tri)
  • Fin Box Compatibility: Single Tab (Futures)
  • Includes: 3 Fins
  • Rider Size: S (105 - 155 lbs)
  • Made in the USA: Yes
  • Warranty: 1 Year

Other Notes

Futures products can only be shipped within the United States and Canada



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