The sUPWINDer from Slingshot is the first of its kind, a stick on keel.
Just peel and stick the sUPWINDer to the bottom of your SUP board making it possible to stay upwind while using your wing-surfer/foil-wing to propel you. Slingshot's sUP WINDERer keel is detachable for standard paddling, leaving the A-Box fin track attached.
The sUPWINDer is easy to install. This product coupled with a wing-surfer goes great for those hoping to build knowledge and comfort in wind sports while taking things slow.
**Hard SUP Boards Only** The sUPWINDer does not work with inflatable SUPs.