A slim RFID-blocking card, explained

Cardian The Safe Card: A Slim RFID-Blocking Card for the Wallet You Already Have

A credit-card-sized card that goes inside your wallet, passport holder or purse. No batteries, no charging.

RFID-blocking card sized like a credit card
Slim: slides in next to your cards, no new wallet needed
No batteries or charging, no setup for basic use
Includes the FindZ app to help locate a misplaced wallet

Made for everyday carry, commuting and travel.

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✓ 30-day money-back guarantee✓ Free app included

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Slim and simple

A credit-card-sized card that slides in next to the cards you already carry.

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No charging

The maker describes it as always on, with no batteries and no charging needed.

30-day guarantee

The maker lists a 30-day money-back guarantee. Check the exact terms on the official site.

Why people look at it

Based on the maker's own description of the product.

Hands sliding a Cardian card into a leather wallet

Keep your wallet. Add one card.

Instead of replacing a wallet you like, you slide a slim RFID-blocking card in next to your cards. That's it.

Cardian card held in front of a passport and a wallet

Fits a wallet, a passport holder or a purse

The card is credit-card sized, so it can travel in the places you already keep your cards and documents.

Man smiling at his phone with a lost-wallet notification

A lost-wallet helper: the FindZ app

Cardian comes with the FindZ app, which the maker says helps you locate a misplaced wallet. Check how it works on the official site before you decide.

Hand sliding a Cardian card into a bag pocket

Easy to use every day

No buttons and nothing to charge: slip it in and carry on. The maker describes waterproof, tear-proof materials.

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✓ 30-day money-back guarantee

What's inside the card

A layered card designed to work as an RFID-blocking barrier, as shown by the maker.

Protective top layer
Signal-blocking layers

Diagram of the layers inside the Cardian card

Slim, credit-card size
No battery

Try It With a 30-Day Guarantee

The maker lists a 30-day money-back guarantee. Read the exact terms on the official site before you order.

Check the Current Price

Continue to the official Cardian site.

✓ 30-day money-back guarantee

What to Expect

We have not tested this product. The information on this page comes from the manufacturer's own pages and specifications. An RFID-blocking card is one extra layer of protection and cannot promise to stop every type of scanning. Independent reviews from buyers can be found on the official site and on large retailers. Features, prices and promotions change, so always confirm the details on the official site before you buy.

Quick Questions Before You Check Out

How does an RFID-blocking card work?

It is designed to interfere with the wireless signal that contactless cards give off, so nearby readers have a harder time reading them. The maker describes it as working just by being inside your wallet.

Do I need one?

That is a personal choice. Contactless cards can be read at very short range, and some people like an extra layer of protection. This card is for them; it is not a guarantee against every kind of scanning.

Will it get in the way of my cards?

It is a slim card that sits next to them. Your cards keep working when you take them out to pay.

What is the FindZ app?

The maker says it helps you locate a misplaced wallet. Check the official site for exactly how it works before relying on it.

How long does shipping take?

Shipping times change, so check the official site for current estimates.

What if I do not like it?

The maker lists a 30-day money-back guarantee. Read the exact terms on the official site before ordering.

Ready to take a closer look?

See the full details, current price and return terms on the official site.

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Product names and trademarks belong to their owners. This page is an independent guide and is not the official Cardian website.