Why you Want a Removable Fin for your Inflatable SUP

Many paddlers are liking their inflatable sups due to the ease of storage, easy carrying and often being lightweight.
The problem with a lot of inflatables is that they come with a fixed glued in fin or a specific fin type for that board or brand. This limits how you paddle and your progression as a paddler.

Benefits of Removable Fins for Inflatables:

  • Fins help with stability and tracking and if you have a tippy board, you can get a bigger fin to help with stability.
  • If you want a rubber fin for whitewater or surf, then it’s nice to have this option
  • If you already have stability and only need a fin for tracking you can use a smaller size
  • Specific fins used for racing or downwinding

Downsides of Fixed Fins:

  • You can’t fold the board as flat as you’d like
  • Fixed fins can break off
  • Specific removable fins can be lost and it’s hard to replace
  • If you’re traveling and you lose your fin you may not find a replacement


Some fin box types: 

I’m a big fan of the Surfco Super Flex rubber fins. These flex and allow you to set them on concrete, bump into things and they won’t slice you in a fall.  Also they allow you to go through kelp bed and lake milfoil without catching up.  The 9″ find is the standard for most boards.

Standard long board fin box

Standard long board fin box with removable fin

Plastic fin with tab to hold it in place


Fin molded into the board (or glued)


Funky fin attachment


About Rob Casey – Named a pioneer in the SUP industry by Stand Up Journal, Rob is the author of “Stand Up Paddling Flat Water to Surf and Rivers” and “Kayaking Puget Sound and the San Juans, 60 Trips.” Rob owns SUP and Kayak school Salmon Bay Paddle in Seattle. He also runs several paddling races.

Salmon Bay Paddle SUP Tips

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