RFID Blocking Sleeves 10 Credit Card and 2 Passport Protectors FIPS 201 Approved by the US Government as Electromagnetically Opaque Shield Holds one ISO7810 ID-1 form-factor contactless Smart Card ( Weather and water resistant / Puncture a Shields ISO 14443/15693 and EPC Gen 1/Gen 2 contactless smart cards and RFID tags Shields the following types of cards: All new contactless credit cards, US Passport Cards, Enhanced All MIFARE and DESFire compatible cards, sQuid cards used in Europe, Military CAC, New Government P