When sourcing embroidered dresses, the base fabric must be strong enough to support the thread weight without puckering. Prioritize natural fibers like cotton, linen, or high-grade silk for breathability, or premium polyester blends for wrinkle resistance. Ensure the fabric weight (GSM) is appropriate for the embroidery density; for heavy patterns, a minimum of 150-180 GSM is recommended to prevent tearing. Always verify colorfastness (Grade 4 or higher) to ensure the embroidery threads do not bleed into the base fabric during washing.