Full-grain leather refers to hides that have not been sanded, buffed, or snuffed (as opposed to top-grain or corrected leather) to remove imperfections (or natural marks) on the surface of the hide.
Top-grain leather (the most common type in high-end leather products) is the second-highest quality.
Full grain leather includes the two crucial components of a hide - the ‘Grain’ and the Corium. This Grain is what imparts strength, beauty and character to leather. Full grain leather is used to make very long lasting, very sought-after leather products.
The main difference between full grain and top grain leather is that the latter has the top layer (grain) heavily processed. This helps in giving a variety of options in terms of colors, feel and man-made markings. However, it reduces the strength of the leather.
Both the full-grain leather or top grain leather can be used in portfolio, organizer cover and different types of wallet.