LUBRIZOL

X4zol™-J fiber, a thermoplastic polyurethane (TPU), is a relatively new elastomeric monofilament that is manufactured differently from elastane, resulting in unique qualities that provide comfort above and beyond traditional stretch fibers. X4zol™-J fiber is produced through a process of melt extrusion, which does not require the use of solvents. The melt extrusion process is cleaner; resulting in a finer and stronger monofilament than traditional spandex, exhibiting a superior stretch... Most spandex fibers exhibit a steeper stress/strain curve, illustrating low initial resistance to stretch, or elongation; and then a rapid increase in resistance to the point of full elongation, or breakage (see spandex weft curve in chart)... What if the next generation of apparel offered a better fit, with comfortable 360° stretch and support, as well as cooling, breathability, and a sense of weightlessness on the body?

Also known as: The Lubrizol Corporation