Many debit and credit cards, driver"s licenses, and all US passports issued after 2006 contain RFID chips with personal information. These chips broadcast the information into the air over radio waves. The Safe ID Slim Shoulder Bag has RFID blocking technology built in to keep personal information, personal. * Product Material: Polyester * Product Weight: 0.35 lbs. * Protect your identity * RFID blocking shoulder bag * Zippered main compartment with card slots and wall pockets * 2 Zippered front pockets * Adjustable, removable shoulder strap * Strap drop 15" to 29"