Folding Propeller for Boost Fin adapter Meet our board bag that's

Meet our board bag that's about to become your absolute favorite travel buddy

✓ Fits 99% of surfboards Universal adapters for every major fin box system — FCS

These pockets include a phone pocket

✓ Perfect fit — designed for all Boost Fin models

Folding Propeller for Boost Fin adapter Meet our board bag that'sThe Boost Fin Folding Propeller is an innovative accessory that minimizes drag and maximizes your performance in every session. The propeller automatically extends when the Boost Fin is powered on and folds when the motor stops, significantly reducing water resistance. Heads up: This folding propeller doesn't require (or work with) a Propeller Safety Guard the folding mechanism keeps it protected when not in use.