I finally wore a hole in my Native Ultimate from dragging it...... I found this product online called Rec'Repair. It is designed to patch/repair just about any type of materiel. It was very simple to install, all you have to do is heat it up with a heat gun and the patch becomes flexible and soft and will mold to whatever you attach it to. You remove the sticky back and apply it to the area you want to patch. As it cools down it becomes rigid and will hold its shape. The whole process only takes a few minutes. They also make skid plates for your craft so you can be proactive in protecting the hull of your yak/canoe.