Sold Per Yard Click here to order samples. Rockywoods is an authorized CORDURA® Nylon Fabric distributor. 1000 Denier (1000D) Coated CORDURA® Nylon Fabric. CORDURA® material is a versatile nylon fabric with more strength and bulk than No. 7 Duck at little more than half the weight. Feb 02, 2016 · How to install & apply silicone caulk | Tutorial | Video Guide | DIY | Bathroom Hacks - Duration: 12:35. Bathroom Plumbing and Fitting 1,774,095 views US woven 1,000d nylon was and remains a world standard in terms of quality nylon fabric. 600d polyester fabric was originally (and remains) an imported fabric woven to compete with or undercut the higher cost of high-denier nylons. 1,000d nylon is usually backed with a light urethane while 600d is usually backed with a heavy layer of PVC.