ECOPAK by Challenge - 200D Recycled Polyester Fabric w/ 70d Ripstop Backing (Sold per Yard) Rockywoods is excited to partner with Challenge Sailcloth, the leading supplier of woven polyester for sailing and kiteboarding. With this new line, the Challenge ECOPAK, every yard saves about one pound of carbon emissions, compared to standard nylon or polyester bag fabrics. The Challenge ECOPAK is a multi-ply construction with recycled face fabric, recycled blue CrossPly yarn inserted at 45 degrees, and recycled white 70d ripstop backing with environmentally friendly C0 DWR. EPX200 (Uses RBC200) 100% recycled polyester components, Environmentally friendly C0 DWR 70d ripstop backing Select "Have your fabric rolled," as folding ECOPAK may leave creases and wrinkles that you cannot get out. *To ensure your ECOPAK is rolled, you must select the "HAVE YOUR FABRIC ROLLED" option found HERE, or at the bottom of the cart page.