When sourcing silk dresses, the most critical factor is the Momme (mm) weight, which indicates the density and quality of the silk. For high-end ladies' dresses, a range of 16mm to 22mm is standard; anything below 16mm may be too sheer or fragile for premium retail. Buyers should request Grade 6A 100% Mulberry Silk to ensure the highest fiber length and uniformity. Always verify the weave type, such as Charmeuse for a high-gloss finish or Crepe de Chine for a matte, pebble-like texture with better wrinkle resistance.