The Drynamic waders represent everything we know about fabrics, breathable membranes and manufacturing techniques. They incorporate one of the finest Toray® fabric systems, which is some next level stuff when it comes to fusing breathability and durability. We then added some additional materials, such as Soft-Shell and Hypalon to further raise the bar. Of course, after all this we still were not satisfied. the best fit you have ever had.