Top grain refers to the upper layer of the hide. When this term is used, also ask whether the surface has been buffed, pigmented or otherwise finished. The term alone does not describe all the properties of the finished product.
What to check
Full grain describes leather whose original grain has not been removed by corrective buffing. It is a material description; also assess the finish, construction and suitability for your use.
Assess the material description together with the finish and construction. The words “genuine leather”, smell, weight or a photograph alone do not establish a reliable quality ranking. Ask for more product information when a detail is unclear.
Leather type alone does not establish a fixed lifespan. Construction, load, finish and care all matter. Check the seams, zips and strap attachment points as well.
Leather care
Choose care suited to the finish. Do not use grease or smooth-leather cream on suede. Follow the care product’s instructions and test a hidden area first; treatment can change the colour or surface.