Surfers, these FCS2 CI fins are absolute game-changers for your performance shortboard! Created in collaboration with Channel Islands Surfboards, the CI Upright template is specifically designed for speed and tight, responsive turns. If you love punching through hollow waves or need that extra startup speed in weaker conditions, these fins deliver. Part of the Reactor fin family, they're all about generating speed while maintaining control during sharp snaps and radical maneuvers. The white large size gives you plenty of drive and hold when you're pushing your limits. They work perfectly with deep concave boards and moderate-to-extreme rocker designs - exactly what you want when the waves get steep and critical. FCS has teamed up with world-class surfers and shapers to create these, so you know they're performance-tested in real conditions. The FCS II system makes installation super easy - just click them in and you're ready to go. Whether you're charging beach breaks, point breaks, or anything in between, these fins provide the perfect balance of speed generation and turning precision. If you want to step up your surfing with equipment that the pros actually use, these Channel Islands collaboration fins are definitely worth checking out.