When sourcing white wedding dresses, the choice of fabric determines both the price point and the target market. High-end gowns should utilize genuine mulberry silk, heavy bridal satin (395 satin), or high-density organza. For the mid-market, premium polyester-based matte satin is preferred for its wrinkle resistance. Always verify the lace type, such as Chantilly, Alençon, or Guipure, and ensure the tulle layers are soft (Swiss tulle) rather than stiff nylon to avoid skin irritation. Requesting a fabric swatch book is essential to confirm the 'whiteness' level, as shades vary from stark white to ivory and champagne.