Karastan uses the best branded nylon from Stainmaster and Wear-Dated to make its carpets. In addition, we partner with DuPont to create new generations of carpet fiber, like Karastan's SmartStrand<sup>TM</sup> with DuPont<sup>TM</sup> Sorona<img src="http://dev.mohawkind.com/karastan-com/jtip/images/regsymbol.jpg"> polymers. This exclusive innovation brings the best qualities of nylon and polyester together in one advanced fiber.