Wrinkle-resistant fabric is a type of fabric that is designed to resist wrinkles and maintain its shape. Poplin (6 letters) is a lightweight, plain-weave fabric with a slight ribbed texture. Orlon (5 letters) is a synthetic acrylic fiber developed by DuPont in 1941. Dacron (6 letters) is a polyester fiber developed by DuPont in 1953. All three fabrics are commonly used for wrinkle-resistant clothing.