When sourcing textile lace, the material composition directly impacts the hand-feel, durability, and dyeability. For high-end fashion, prioritize Nylon-Spandex blends (typically 90/10 or 85/15) for superior elasticity and recovery. Ensure the pattern definition is sharp with no loose threads or 'hairy' edges, which indicates high-quality Raschel or Leavers machine production. For bridal or luxury wear, verify the GSM (Grams per Square Meter) to ensure the weight matches your design requirements, and check for colorfastness to washing and light (Grade 4 or higher).