When sourcing Korean-style dresses, fabric quality is paramount for achieving the signature 'drape' and 'aesthetic.' Prioritize Chiffon (high-density), Cotton-Linen blends, or TR (Polyester/Viscose) fabrics. Ensure the fabric weight (GSM) is specified to avoid transparency issues. For summer collections, look for breathable, anti-static finishes, while for autumn/winter 'Dongdaemun' styles, verify the use of heavyweight knits or wool-blend fabrics with a minimum of 30% natural fiber content for a premium feel.