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System | Template | Foils | Flex | FAQ

A foil is a cross section of the fin that effects how water flows across it. Airplanes have different wing foils for different performance benefits, and your fins should too. We created different foils for different speeds, conditions, and performance feel. V. and V2 foils fell fluid and drivey, and have the ability to generate speed while flat fins break free sooner and are better at controlling speed.

Our foils are complete cross-sections (not just a concave inner surface) designed to promote the natural flow of water and therefore the water attachment to the surface of the fin. We designed our foils after experimenting with our library of thousands of combinations of NACA foils to determine what works well for different surfing applications. The benefit of our Foil Technology is how we apply different amounts of lift by controlling the pressure differential created between the outside surface and the inner surface of the fin. This differential creates lift (Drive during bottom turns) as the fin gets pushed from the high pressure on the inner surface towards the low pressure outer surface. Creating the pressure difference without inefficiency (Drag) is achieved with careful 3D design of the curves of the foil and years of experimentation to maximize clean non - turbulent water flow. The result is less drag with more lift, which you will notice in your surfing. Different surfing conditions as well as style and personal preference determine which foil you will like best. This is why we use different foils for each type of surfing: tow, paddle gun, fast waves, slow waves.

Flat Foil

Flat foiled fins break free sooner, and are better at controlling speed. Often surfers prefer them in fast powerful surf where they do not need to create additional speed

Validated fin designs will always form our foundation. If you have muscle memory from riding glass-ons, flat foiled fins will feel the closest. Futures has a flat foiled fin line-up in many templates for every size, shape, and style of rider, from finely-tuned smaller templates for Groms and Girls to full-size templates for pro talent like Jordy Smith, Rob Machado, Michel Bourez, Brett Simpson, Adam Melling, Ry Craike, Mikala Jones, and Pancho Sullivan. Tell your local surf shop what you want from your next fin.


V2 Foil

Drive in bottom turns, but breaks free in the lip like a flat fin

A V2 Foil is a V. Foil and Flat Foil blend. It takes the best speed generating attributes of the V. (at the base) and transitions into a flat foil in the tip for a controlled release in critical turns. V. foils feel fluid and drivey, and generate more speed during bottom turns. Try the V2 foil if you are transitioning from flat sided fins, because the benefits of the vector foil base will be noticeable but the change for your muscle memory will not be too drastic.


V. Foil

Great for getting speed if you are having trouble finding it. Fluid rail to rail transitions.

V. Foils are designed to maximize lift with a minimal amount of drag. Fins with this V. Foils will find speed that you did not know was there, or help you get that extra gear to really find drive in your bottom turns. The leading edge of the fin is more rounded accepting more water flow at all angles of attack, and making the fin feel very fluid rail to rail.


Tow Foil

Designed for stability at high speeds

Instead of maximizing the lift, this foil is stable with very little drag. The foil is convex on both sides with a small amount of camber or asymmetry.