Slim size pocket with the highest RFID reading protection thanks to built-in protective film (CRYPTALY). TUV Certified Reading and stealing sensitive data on credit cards, hotel key cards, ID cards, etc. are prevented. Reliably protects all frequencies from 100 kHz to 4 GHz. Radio waves are blocked. The flat shape and skin-friendly material on the back allow the waist bag to be worn under clothes and directly on the skin. Suitable for European passports Suitable for travel, leisure and sports. For men and women.