by Scott McCrea » Sep 14, 2013 9:20 am
Cordura is a brand name and is usually, but not always, made with nylon. Polyduck is made with polyester. The performance difference will depend on the quality of the materials and construction techniques. Too many variables to give a definitive answer. Don't put either one in the dryer. They could shrink or melt. And, many fabrics have a coating on one side or both that could peel off. Just air dry them.