Take a tour through the Futures fin factory
While the larger fin on your SUP board is probably a US box - chances are the thrusters (those little two on the outside) are housed in a Futures box. Unless you're riding a quad - then all four of your fins might be futures boxes. Either way - if you haven't ridden them, you've definitely seen them around.
Check out this video for a glimpse into the world of Futures, at their USA based factory.

