Identity Stronghold Designer Sleeves - Waterfall Collection - 5 Credit/Debit Card Sleeves Secure Sleeves were the first product ever on the FIPS 201 Approved Products List! Blocks a larger range of RFID frequencies. Includes 5 Credit Card Sleeves in our most popular collections! Made of high quality advanced laminate for strength. Blocks RFID chips in cards from being read without permission. Unlike cheap knockoffs, our sleeves are made 100% in the USA!