Iron on and flexible non-woven. Volume lining H630 is thinner than H640. Ideal for giving your creation more body, such as for bags, patchwork, quilting, topstitching, warm clothing, play mats, etc. 
Place the coated side on the wrong side of the fabric, cover with a damp cloth and press with the iron for about 15 seconds in a stepwise motion, do not iron. Leave it flat for another 30 minutes so that the volume lining sticks well to the fabric.