Ebestshop4u via eBay offers this Aluminum RFID-Blocking Credit Card Wallet in several colors for $3.99 with free shipping. That's about $3 less than you'd expect to pay for a similar item in local stores and the lowest price we could find, outside of similar wallets from other third-party sellers. This water-resistant wallet features a push-button latch, six credit card slots, and RFID anti-theft technology.