Understanding leather grades is critical for pricing and durability. Full-grain leather is the highest quality, retaining the natural grain and offering maximum breathability. Top-grain leather is more common in B2B sourcing as it is sanded to remove imperfections, making it more uniform and cost-effective. For budget-conscious projects, Split leather or Bonded leather may be used, but they have a significantly shorter lifespan. Always request a Material Analysis Report to verify the leather's origin and processing method.