MISTRAL Flex fin US Box for air SUP and other surfboards

MISTRAL Soft Flex fin for air SUP and other surfboards, for US Box system

Flex fin fin for airSUP and other surfboards  with US box

Best for river and shallow water suping!

OPTIONAL: Fin screw:
air7 Titanium or Stainless Steel Fin Screw is a Titanium longboard / SUP center fin screw that removes the need for screwdrivers.
Fin screws like this have been around since the 1970's So easy to use, simply tighten your fin by hand.
This allows you to adjust your fin anywhere, anytime including while out in the surf!

Please order screw and plate seperately!