I travel the world regularly and I've always been concerned that someone might impersonate me by stealing the RFID data from my passport. Some of the wallets I've looked at to protect against this are large and bulky. It's not like this. It's just the right size to hold the cards I only use when I'm on the go, as well as some cash. It's also very pretty, nicely finished and fits in my leather backpack where it is most of the time. It almost looks like it's designed to go along.