FCS are by far the out and out leaders when it comes to surfboard fin systems. They have a huge range of different fins that you can attach to any surfboard that is equipped with FCS plugs meaning you can turn a surfboard you think is just average into the best board you have ever ridden. It is as simple as turning a couple of grub screws with an allen key so it couldn't be simpler.
FCS Fins are ridden and designed by the worlds best surfers and shapers, most notably Kelly Slater. FCS Surfboard fins are great for any surf trip as it means you can easily take your fins off your board during travel so you don't have to worry about any heavy-handed baggage handlers snapping or damaging your fins on your precious stick.