Pick a brand that names its full-grain leather and shows it up close. Check...

https://highstylife.com/how-can-i-tell-if-wallet-stitching-is-good-quality/

Pick a brand that names its full-grain leather and shows it up close. Check seams and edges in clear photos. Read the warranty: what is covered, and for how long? For initials, see if they are pressed, stamped, or etched, and where they go