It aids in preventing shredding during heavy embroidery needling, offers lightweight lining support that stretches with movement, and protects skin from irritating embroidery stitches. The tape is great for stretchy seams and stabilizing collars, necklines, and hems. Ideal for delicate fabrics like silk, chamois, lame, satin, and spandex; and will not change the drape or hand of fabric once fused. Woven. 100% Polyester.