Pellon 931TD Fusible Midweight Fabric Interfacing. White. 20 x 10 Yards by the Bolt. This is a non-woven interfacing for medium to heavyweight fabrics. It is ideal to use for active sportswear yokes on dresses and shirts and linings for snaps and buttons. It can also be used for lightweight linings for pillows curtains and bags. This 100% polyester fabric is machine washable for easy care and is sewing machine safe.