This a size "extra large" kayak cockpit skirt. I think "extra large" means that this fits a cockpit that is 19 inches wide and 36 to 38 inches long. If it does not fit your kayak you can return it for a refund. It is Tahe Marine brand and the bottom is neoprene, the top nylon. The sprayskirt has never been used, and it is in excellent condition.