The brief
The wallet is the test.
A card lives against other cards, coins and keys. It gets bent slightly every time you sit down. It gets warm, then cold, then wet once.
So the format is the one already proven by that environment: standard card size and thickness, so it slides into any slot and disappears among the rest.
The finish had to survive handling too. A deep matte surface holds fingerprints far less than gloss, and small scuffs read as wear rather than damage.
The object
Details worth stating.
- Format
- Standard card size and thickness, fits any wallet slot.
- Surface
- Deep matte black, fingerprint-resistant, with a single rose-gold hairline.
- Markings
- None on the face. No name, no number, nothing identifying.
- Contact
- None. Nothing to insert, nothing to corrode, no battery to age.
- Reading
- Held flat against the back of a phone, through the app.
- Rewrites
- Reusable. Writing a new vault replaces the previous contents.
It should feel
like a tool.