Pick a brand that names its leather. Full-grain leather wears in well, but...

https://www.bookmark-jungle.win/look-for-a-brand-that-names-its-leather-full-grain-leather-develops-character

Pick a brand that names its leather. Full-grain leather wears in well, but check the edge finish, too. Read the warranty before you buy. Adding initials? Check if they’re stamped, engraved, or printed, and where they’ll sit.