Our RFID Secure Sleeves will shield all contactless credit cards and debit cards as well as passport cards, enhanced drivers licenses, transit cards, HID iClass cards, TWIC cards, PIV cards, CAC cards, LincPass cards and others. For best shielding results, the clear ID slot should be limited to one card only. You can have all your store rewards cards with you when you need them. Carry your health card, insurance card, and auto club cards with you.