Jobe's Aero line has changed fin systems more than once over the years, so this is a brand where checking your exact model really matters. The legacy Aero SUP 10.6 uses a standard US Box fin. The Aero Lite series uses a slide-in fin that slots into a fabric track. And the newer Premium Aero range — Yarra, Duna, Loa and Sena — uses Jobe's tool-free EZ-Lock system. We currently stock replacement fins for the US Box models; if your board uses EZ-Lock or slide-in, we'll tell you exactly that rather than sell you a fin that won't fit. Select your model below to see which system yours uses.