Stewart/Stand RFID Blocking Slim Minimalist Stainless Steel Passport Sleeve PATENTED ORIGINAL  Design, material, and technology. Your wallet will look and work as a SHIELD while being soft, flexible and completely unique. SECURE. VERSATILE RFID BLOCKING  Certified independent lab tests (ISO 15693). Advanced security and blocks personal data at the 13.56 MHz Frequency while allowing quick passage of proximity cards at 125 KHz Frequency. MINIMALIST. SLIM PROFILE  Reduce bulk. Wallet is .2" plus the thickness of your passport. Thin, light, and durable. SUPERIOR FUNCTION  Simple passport cover for securing privacy while traveling - Cover Size 4.0" x 5.94" x 0.19" 12 MONTH and THEFT WARRANTY  Continuously improved, our wallets are built to last. NO HASSLE - Any question, please let our service team know to replace or refund. If your wallet is lost due to THEFT, we'll send a replacement. You replace your credit cards, we'll take care of your wallet.