It appears to be a medium-sized wallet, but no. It's a lot wider than it looks, I suppose wide foreign bills fit just fine, but it's that wide for US dollars. They add an extra centimeter to the bill, which is a bit annoying as my pockets aren't made for a large wallet. It may look like 1/2-3/4 inch and it will still be fine. RFID works though, I tried putting the wallet on a card reader and it didn't work at all, so size aside it's a pretty good wallet.
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