Pick a brand that names full-grain leather, not just leather. Read the warranty...

https://touch-wiki.win/index.php/Best_Leather_Brand_for_Outdoorsy_Weekend_Gear_56714

Pick a brand that names full-grain leather, not just leather. Read the warranty to see what it covers, for how long, and how to make a claim. Check how initials are applied - stamped, embossed, or engraved - and where they go