Quick answer: leather wins for comfort, flexibility and classic style; metal (aluminum/stainless) wins for slimness, RFID protection and durability. Choose leather for daily all-round carry, metal for a minimalist statement or travel.
Comfort and feel
Leather molds to your pocket and softens over time. Metal never molds — it can feel rigid in a front pocket, though rounded edges and slim machining minimize that.
Durability
| Leather | Metal (aluminum) | |
|---|---|---|
| Lifespan | 5-10+ years with care | Practically indefinite |
| Scratches | Patina (acceptable) | Visible on anodized finish |
| Water | Needs protection | Unaffected |
| RFID blocking | Needs liner | Inherent |
Weight
Aluminum money clip wallets weigh 40-70 g — heavier than a thin leather card holder but far lighter than steel. If weight matters, leather or a hybrid (leather exterior, metal core) is the sweet spot.
Bottom line
Leather for a classic daily wallet; metal for slim card-heavy carry. Both are manufacturable with custom branding — see minimalist wallets or private label programs.