When purchasing stock lots, quality can vary significantly between rolls. You must request a detailed packing list that specifies the composition (e.g., 100% Cotton, Polyester/Spandex blend), GSM (grams per square meter), and usable width. It is critical to order a sample yardage or a 'hand-feel' swatch before committing. For large volumes, hire a third-party inspection service to check for common defects like color shading, holes, or uneven printing, as stock lots are often 'overruns' or 'cancelled orders' from other brands.