These tights are made from innovative and environmentally friendly NILIT® Ecocare yarn! NILIT® Ecocare multi-layer nylon yarn is manufactured to recover nylon waste from production, creating new fiber that when manufactured saves material, water and causes waste minimization. At Sokisahtel, we have long been concerned about our impact on the environment. NILIT® Ecocare tights bring together our philosophy and sophisticated R&D for a breakthrough in yarn engineering and production.