Bought four, three as gifts. Both me and my friends are passionate about cardholders. They carry plain cards comfortably and look like a premium business card holder. They are metal, probably steel, with a strong hinge and opening button. There is no way to rate their effectiveness in combating RFID.
Credit Card Holder with Chain Cover
70 Review
Maxpedition BRK π³ MX218F Gear Micro Wallet
68 Review
π Minimalist & Durable Flowfold Sailcloth Made from Recycled Materials
58 Review
Wally Micro Reversible Wallet Pull Tab Men's Accessories and Wallets, Card Cases & Money Organizers
53 Review