Pellon SF101 Shape-Flex Fusible Interfacing is a high-quality woven cotton interfacing designed to add body, stability, and support to sewing projects without sacrificing softness. Ideal for use with light to medium-weight fabrics, it’s perfect for collars, cuffs, button plackets, handbags, and home décor. The fusible side bonds easily to fabric using an iron, ensuring a secure hold that doesn’t shift during stitching. Its woven structure moves with your fabric, maintaining natural drape while reinforcing shape and structure. A favorite among professional sewists and beginners alike, Shape-Flex is a reliable choice for polished, lasting results.