When sourcing woven textiles, you must prioritize yarn count and thread density, as these directly impact the fabric's hand-feel and durability. For high-end apparel or home textiles, look for long-staple cotton or high-tenacity synthetic blends. Ensure the supplier provides data on tensile strength and tear resistance to guarantee the fabric can withstand industrial processing. Additionally, verify the colorfastness rating (Grade 4 or higher) against washing, light, and rubbing to prevent fading in the end product.