A water sports board includes a top deck forming portions of an outer surface of the water sports board; an underside forming portions of the outer surface; a set of internal baffle chamber structures disposed between the top deck and the underside, each baffle chamber structure fluidically isolated from another baffle chamber structure and including a plurality of pressurizable/inflatable baffle elements therein having hollow elongate internal passages that are fluidically coupled to one another; and a set of inflation/deflation valves fluidically coupled to the set of baffle chamber structures, wherein each inflation/deflation valve is accessible from the outer surface of the water sports board. The water sports board can also include a concavity adjustment mechanism by which concavity of the underside of the water sports board is adjustable. Essentially the entire water sports board is manufacturable by way of 3D printing.