When sourcing Jacquard sofa covers, prioritize high-density fabric blends, typically a mix of Polyester and Spandex (e.g., 95% Polyester, 5% Spandex) to ensure both durability and elasticity. The fabric weight (GSM - Grams per Square Meter) is a critical quality indicator; look for products between 230 GSM and 300 GSM for a premium, non-see-through feel. Ensure the Jacquard weave pattern is integrated into the fabric rather than printed to prevent fading and maintain texture after multiple washes.