Pellon SF101 Shape-Flex Fusible Woven Cotton Interfacing provides crisp support for collars, cuffs, yokes, pockets, facings and other detail areas of a garment. It adds body and permanent stability when used as a backing for needlework and punch embroidery. It is also perfect for use in handbags, pouches and other accessories. Note: Always pre-wash and pretest fabrics to make sure it is compatible with the fusible. Do not use fabric softener. This interfacing does not require pre-shrinking. Available in a variety of sizes.