Speed – Similar to inflatable kayaks, they are slower, given that they should be thicker and wider to provide satisfactory rigidity. Most stable paddle boards are created working with fiberglass and/or epoxy close to a foam core. This construction approach allows boards to be light-weight although remaining rigid and sturdy. https://andytpgvm.answerblogs.com/20024077/details-fiction-and-best-inflatable-stand-up-paddle-board-for-ocean