Pellon EK130 Fabric Interfacing Black 20 x 25 Yards by the Bolt - 1 Pack. EK130 Easy-Knit is a fusible knit interfacing and supple stabilizer for dresses jackets and pants. It is best to be used with light to knits woven sweater knits and machine knitted fabrics and is excellent with fabrics such as wool flannel and gabardine. Easy-Knit has both a lengthwise grain for body and stability and a crosswise stretch for flexible shaping.