Elastic - Woven
Also referred to as non-roll elastic, woven elastic is usually the firmest of the three basic elastic types. It retains width as it is stretched, and is suitable for sew on applications as well as use in casings. Because it tends to be very firm, it is also suitable for heavier weight fabrics. In general, don't cut woven elastic with much negative ease, because it will pull too much. In other words, if using it in a waistband, cut the elastic to the body measurement where the waist hits, not any less.