Suitmaker 601 is a fusible weft interfacing that is 62% viscose and 38%polyester. (Weft interfacings are a knit fabrics with threads woven through them. It has the stability of wovens with the drapability of knits.) Used in sleeves and the backs of jackets. Popular use by Ron Collins. (http://www.homefamily.net/interfacing-lining-and-underlining/) Suitmaker 602 is slightly heavier than Suitmaker 601. Available in black and cream.
Dry clean only.