DOES NOT BLOCK RFID! I work in a building with secured access, different access areas require 2 different types of cards. The main doors are equipped with RFID, NFC is used in restricted areas. This wallet does not block either. I can bring my whole wallet to the readers, it reads my cards from both sides. Luckily this isn't the feature I want so I'm keeping the wallet to myself as it's made of good quality leather and looks good.
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