Sewer’s Dream is 100% polyester light weight fusible interfacing. It is light enough that both sides of collar, collar band and cuffs can be interfaced. It is a popular interfacing used by Ron Collins. (http://www.homefamily.net/interfacing-lining-and-underlining/) Washable and dry cleanable. We like it for soft silks in particular as it will add the support for facings etc but without adding crispness to the hand of the fabric. Always test first with a sample. Available in black and white.