Here in the UK, contactless smart cards are increasingly popular with every credit and debit card in my wallet now enabled for PIN-free low value transactions. They’re very popular as travel cards too, with London’s Oyster card being a good (but not unique) example. Convenient as this contactless technology is, there can be problems. With a wallet full of cards, sometimes the wrong card can charged or the right card not recognised, but there have also been scare stories about criminals using portable card readers to take small amounts.

Merlo has a solution to this problem with a lovely range of British-designed leather wallets with built-in blocking technology, plus two outer unshielded pockets. What this means is that you put most of your cards inside the wallet where they can’t be read but put the card(s) you do want to use in the outer pockets; say, one travel card and one payment card. Pass your wallet across the reader and the right card is used.

Part of the British Inventors’ Project at Gadget Show Live, I chatted with Mark from Merlo to understand more about their new wallets. Prices ranges from GB£38 to £75 with four different wallet types available for purchase from Merlo’s website.

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