GREENSBORO, N.C. — October 13, 2026 — Unifi, Inc., together with polyester filament yarn manufacturers across North and Central America, today announced the launch of YarnProof, an industry-wide initiative designed to provide immediate, physical verification of polyester filament yarn origin throughout the supply chain. YarnProof, powered by FibreTrace® technology, embeds an invisible and permanent tracer into polyester filament yarn during extr…