Boost Fin Longboard Adapter (US Fin Box) adapter The fin box becomes a

The fin box becomes a permanent part of your board

Effortless style meets serious sun protection

long boost to get back to the lineup — up to 2 hours on a single charge

Classic crew neck that goes with everything

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

Boost Fin Longboard Adapter (US Fin Box) adapter The fin box becomes aAttach the Boost Fin to your board with a Longboard Adapter (US Fin Box). If youre not sure which adapter fits your board, check our Adapter Guide. Still need help? Send a photo of your fin to info@boostsurfing. com.