This BRIS bsd300 inflatable boat is made of 1100 denier 0.9 mm PVC fabric with a high-pressure drop stitch air deck floor. Our drop stitch floors can take up to 9 psi of air pressure, proving as tough and rigid as a conventional aluminum floor boat but with the added light and comfortable. If you are planning to inflate and deflate your boat often, then the air floor is your best solution, because the boat folds compactly. It's a breeze to assemble inflatable boats with air floors. Just roll out and inflate.