Sewin interfacing for midweight to heavyweight fabrics. Nonwoven fusible, perfect for active sportswear, lightweight lining for pillows, curtains and bags and jackets. 100 acidfree. Fusible rough side. Preshrinking not required. Also great for Tshirt quilts. Has some stretch. 100 Polyester. FREIGHT INTENSIVE Billable transportation charges for freight intensive items will be the greater of the dimensional weight compared to the actual weight. In addition to transportation charges, freight carriers may assess an additional oversize charge per package.