Heat N Bond Fusible Interfacing is made from a non-woven polyester blend. This interfacing acts as a stabilizer for fabric, quilts, and home decor. Apply Heat N Bond Fusible Interfacing using a warm iron to reinforce your fabrics. Choose from four different options to best suit your project. Lightweight interfacing is mostly used in sheer or thin fabrics, and mediumweight works well as all-purpose interfacing. Heavyweight interfacing is typically used in jackets, waistbands, or bag making, while the high loft fleece is mostly used in quilting and home decor projects. Made in the USA. All Heat N Bond Fusible Interfacing measures 20 inches wide by 35-yards, except the High Loft Fleece. It comes on a smaller bolt, that only holds 11-yards.