Inflatable boat *1100D Hypalon;1000D PVC *3-year warranty *corrosion resistance, anti-aging, and tight adhesiveness... V-KeelGoethe yachtconforms to the ISO6185 system craft standard, its main characteristics are as follows:*The material is good.Air buoyancy tire still maintain good air tightness under 0.3bar pressure of work, this buoyancy tube, boat inside keel and floor have close combination, ...