In the secondary market, bags are typically categorized into grades: Grade A (Cream/Super Grade) features items with no visible wear, no stains, and no damage, often looking like new. Grade B includes bags with minor signs of use, slight fading, or small scratches but remain fully functional. Grade C consists of items with noticeable wear, broken zippers, or heavy staining, usually sold at a much lower price for repair or low-end markets. Always request a detailed grading standard document from the supplier before purchasing.