The MOAI US Center fin; makes sure that you will paddle in a straight direction. Every MOAI board from the 2022 collection is equipped with a US Center fin as standard. Buy it here if you need a new or extra one. Do not go out on the water without adding the fin on your board!
Every model with US finbox comes with this basic US fin. We always recommend to buy a spare one so when you are on a trip and you lose or break your fin, you will always have a spare one with you.