This Future fin set is from the man who created the thruster, Simon Anderson created this template for speed and power. Its large base with a large surface area at the tip allows this fin to transfer speed into power. This surfboard fin set is made from Future's RTM technology. This is a 5 fin set so you can switch from thruster to quad in a snap.

Hex RTM
Lightweight foam hex core glass fin that has the look and feel of a glass-on fin. Engineered with a medium flex pattern. Great for all conditions.

Future SA4 Fin Details:

Thruster fin details:

• Height: 4.63"


• Base: 4.51"


• Area: 15.80"

Quad Fin Details:

• Height: 4.36"


• Base: 4.14"


• Area: 13.24"