Travelon RFID Blocking Undergarment Waist Pouch, Gray Effectively blocks RFID readers from capturing information protecting your identity and valuables Two zippered pockets to store and protect money, passport and credit/debit cards Three drop pockets hold tickets, receipts and boarding passes Comfortable to wear over or under clothing when the back air mesh panel helps to keep you cool and an adjustable waist strap fits most waist sizes.