Wallets & RFID
Slim Metal RFID Blocking Card Wallet. Pop-Up Mechanism
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Aerospace-grade aluminium card wallet with built-in RFID blocking. One-handed pop-up mechanism fans 8-12 cards in a neat arc. Tested against UK contactless skimming. Fraction of the bulk of a leather bifold.
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Features
- Aerospace-grade aluminium construction
- RFID blocking: protects contactless cards (13.56 MHz)
- Pop-up mechanism fan cards out one-handed
- Holds 8 cards comfortably (up to 12 max)
- Integrated elastic cash strap on back
- 70g, half the weight of a leather bifold
- Independently RFID-tested to ISO/IEC 14443
- Materials
- Anodised aerospace aluminium shell, food-grade elastic cash strap
- Dimensions
- 9.5cm × 6.5cm × 1.2cm
- SKU
- MRW-SLIM
About this piece
A minimalist alternative to the leather bifold. One-handed pop-up mechanism: push the lever, your cards fan out in a neat arc pull the one you need, push the rest back. Tested with UK contactless debit cards, Oyster, hotel keycards, and contactless office passes.
Why metal, not leather
The case for switching from a leather bifold:
- Half the weight: 70g vs 120-180g for typical leather wallet
- Half the bulk; 1.2cm closed vs 2.5cm for a stuffed leather bifold
- RFID protection built in — no need to add foil sleeves
- Doesn’t show wear at the seams leather wallets fail at the corner stitching first; aluminium has no stitching
- No interior pockets to fight with: every card is equally accessible via the fan-out
The case against: it doesn’t develop patina the way leather does. Some people consider leather wallet patina a feature; others consider it scratched-up wear. If patina matters to you, look at our leather options instead.
How the pop-up works
A spring-loaded rail inside the shell pushes cards from the bottom when you depress the side lever. Cards fan out in a clean arc, each one offset slightly from the next so you can see and grab any of them.
After use, push the cards back into the shell and they sit flat. The mechanism is rated for 10,000+ cycles before any noticeable wear.
This is genuinely faster than a leather wallet for the contactless-pay use case: lever, present card to reader, return. The leather bifold requires opening, identifying the right card slot, sliding the card out; significantly more steps in the rain or in a hurry.
RFID — what’s actually being protected
Modern UK contactless cards transmit at 13.56 MHz (the ISO/IEC 14443 standard). Skimming devices read this frequency from up to 10cm away, copying card details for fraud.
The aluminium shell creates a Faraday cage: a closed conductive surface that blocks the radio frequency from reaching cards inside. We’ve tested with:
- UK debit cards (all major UK banks)
- Credit cards (Visa, Mastercard, Amex)
- TfL Oyster cards
- Contactless office building passes
- Hotel keycards (most major chains)
None read through the closed wallet. Cards work normally when removed.
The protection is passive no batteries, no electronics, no app. The shell just is the shield.
Who this is for
- Front-pocket carriers: the slim profile genuinely doesn’t bulge
- Daily commuters; fast contactless access, RFID-protected for crowded transport
- Travellers — slim enough to keep in a passport holder, protects all cards from skimming
- Minimalists fewer items, fewer cards, faster access
- Gift for men with overstuffed leather wallets: the upgrade they didn’t know they needed
Looking after it
Wipe with a slightly damp cloth. Avoid abrasive cleaners (they’ll dull the anodised finish over time). The mechanism doesn’t require any lubrication. If it gets jammed (rare; usually caused by overstuffed cards), open carefully, slide cards out, fan-out again — almost always self-corrects.
12-month warranty on the mechanism and shell. Anodised finish wear from normal use is excluded.
Questions answered
Does the RFID blocking actually work? +
Yes — the aluminium shell creates a Faraday cage around the cards. Independently tested at 13.56 MHz (the standard UK contactless card frequency, ISO/IEC 14443). Blocks all common skimming attempts. We've tested with UK debit cards, Oyster, hotel keycards, and contactless office passes: none read while in the wallet.
How is RFID blocking different from card sleeves or aluminium foil? +
Card sleeves protect one card at a time and slide easily out of place. Aluminium foil works but isn't sustained by use. A sealed metal wallet (this one) creates a continuous shield around all cards simultaneously, with no chance of misalignment. The protection is built into the shell, not bolted on.
How many cards does it actually hold? +
8 cards comfortably with the full pop-up function (the lever fans them in a clean arc). Up to 12 cards if you don't mind the fan-out being slower. Common configurations: 8 = debit + credit + Oyster + work pass + driving licence + 3 loyalty cards. 12 = above + 4 more loyalty/membership cards.
Is it heavier than a leather wallet? +
Lighter, 70g vs 120-180g for a typical leather bifold. The aluminium is genuinely thin (1.2cm closed) so it sits flatter in a front pocket without bulging.
Will it scratch my cards? +
No, the interior of the shell is smooth-finished. Cards slide in and out without abrasion. The pop-up mechanism uses a spring-loaded rail that pushes cards from the bottom, not a friction wheel that could wear card surfaces.
How does the cash strap work? +
An elastic strap on the back of the wallet holds 3-4 banknotes folded in half, or up to 8-10 if folded into thirds. UK £5/£10/£20/£50 notes all fit; the strap stretches to accommodate currency wider than the wallet itself (US dollars, Euros).
Will it set off airport metal detectors? +
Yes; like keys, watches, or any pocket metal, you'll need to put it in the tray at security. Not flagged as suspicious; treated like any other metal personal item.
Is the metal wallet better than a leather wallet? +
Different rather than better. Metal wins on: weight (70g vs 150g), bulk (1.2cm vs 2.5cm folded), RFID protection (built-in vs added), card capacity per cm. Leather wins on: classic aesthetic, develops patina, holds folded receipts/notes more securely. For minimalist function, metal. For a more traditional pocket aesthetic, leather.
What's the warranty? +
12 months for any manufacturing defect (failed mechanism, cracked shell, separated parts). Wear and tear (light scratches on the anodised finish) is normal use, not covered. The aluminium is hard-anodised so the colour layer is integrated rather than painted; it doesn't peel or chip.
Suitable as a gift? +
Yes — particularly good for: minimalists upgrading from a bulky leather bifold; tech-leaning gift recipients; men who carry their wallet in their front pocket; commuters who use contactless multiple times daily. Ships in branded LuxuryTrex packaging.
