Nilit uses Sensil Flow to increase knit recycling Premium nylon manufacturer Nilit has launched a new nylon 6.6 fibre aimed at improving the recycling potential of knitted fabrics and garments. Described as a new approach to nylon 6.6 circularity, Sensil Flow claims to support the sustainable recycling of yarn, fabric, and, ultimately, apparel to eliminate waste and further reduce apparel’s environmental impact.