Buyers should distinguish between Genuine Leather (Top Grain or Full Grain), which offers maximum durability and a premium scent, and PU/Synthetic Leather, which is more cost-effective and animal-friendly. For high-end photography or wedding markets, ensure the leather thickness is between 1.2mm to 2.0mm to provide a substantial tactile feel. Additionally, verify that the inner lining material (such as microfiber or acid-free paper) is compatible with long-term photo preservation to prevent chemical reactions.