Protect your personal information with these RFID Blocking Credit Card Sleeves. Slim, lightweight design slides easily over your credit cards, driver licenses and other RFID-enabled cards and stores in your wallet to protect them from unwelcome radio-frequency identification. Open side allows easier card insertion and retrieval. Sleeves are treated with an antimicrobial agent to protect the sleeve against the growth of bacteria, mold, mildew, fungus and odors.