Pellon 881F Fabric Interfacing Gray 20 x 10 Yards by the Bolt. It is a fusible nonwoven interfacing for detailed tailoring of medium to heavyweight fabrics. It offers a crisp silhouette and is excellent for gentle controlled shaping of suits and coats. It is designed for suit weight fabrics and fabric treated with special finishes. It has both a lengthwise grain for body and stability and a crosswise stretch for flexible shaping.