The Futures QD2 3.75 Techflex Quad Rear Fin Pair provides a predictable, stable ride that is ideal for strong surfers in big waves.
Techflex – Techflex is stiff like Fiberglass but lighter than Honeycomb. The ultimate in flat foiled fins, great for powerful surfers or powerful surf.
Rear Fins – Height: 3.76" / Base: 3.71" / Area: 10.73" / Foil: Flat
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. If you have muscle memory from riding glass-ons, flat foiled fins will feel the closest.
Ride Number 3.3/10 – Ride Number is all about how your equipment feels while you're surfing. Now you can choose a Speed Generating Feel that is springy and responsive by picking a fin in the 10-7 range, or a solid, engaged, and predictable feel from the Speed Control category rated 4-1. For a Balanced feel try a Ride Number of 7-4.