Fin-S are the latest fin system on the market. What differentiates Fin-S from the rest of the removable fin systems is that there’s no screwing. Instead of securing fins in place with an allen key, there’s a stainless steel spring and locking pin the Fin-S box. Looks like you can easily throw your fins in and pull them out without stripping any keys or screws. View Installation.
I’ve never used, or even seen Fin-S in person. If you have tried Fin-S, be stoked to hear how they work.