Bosal Nonwoven Fusible Interfacing in Featherweight is a soft 100% polyester used for sewing and tailoring. Add a gentle support to delicate materials using Bosal Nonwoven Fusible Interfacing Featherweight. Made in the USA. This white, nonwoven interfacing has a little stretch to it. Use Bosal Nonwoven Fusible Interfacing for t-shirt quilts and on lightweight fabrics like gauze, challis, and crepe. Bosal Featherweight Interfacing measures 20-inches wide and is sold by the yard.