The ROCKIT board also doubles up as a kayak and comes with everything you need to use as either a SUP or kayak.

The ROCKIT package comes with a 4-piece kayak paddle which you can construct as either a kayak paddle with two blades or a SUP paddle with a blade and a handle, and a kayak seat which you can attach using the D rings on the deck pad. 

See also Can I Attach a Kayak Seat to the Boards?