An identification wristband for emitting a radio frequency identification signal comprising: a first flexible polymer lamina having an outer surface and an inner surface, a second flexible polymer lamina having an outer surface and an inner surface, a third flexible polymer lamina located between said first and second laminae (30,34), the wristband being characterised by a radio frequency identification circuit (50;60;70,76,82;90,92,94) on one of said laminae (30,32,34) for defining identification information, said radio frequency identification circuit (50;60;70,76,82;90,92,94) comprising an RFID chip (70,94), an antenna (62; 72) deposited on said third flexible polymer lamina and encapsulated between said first and second flexible polymer laminae (30, 34), and a connection (76,82;92,96) between the radio frequency identification circuit (50;60;70,76,82;90,92,94) and the antenna (62; 72) for applying a radio frequency signal bearing said identification information to said antenna (62; 72), said antenna (62; 72) and/or said connection (76,82;92,96) being of conductive ink deposited on said third flexible polymer lamina, said first and second flexible polymer laminae (30, 34) being secured to each other to encapsulate said third flexible polymer lamina, said radio frequency identification circuit (50;60;70,76,82;90,92,94), said antenna (62; 72) and said connection (76, 82; 92, 96). a first flexible polymer lamina having an outer surface and an inner surface, a second flexible polymer lamina having an outer surface and an inner surface, a third flexible polymer lamina located between said first and second laminae (30,34), the wristband being characterised by a radio frequency identification circuit (50;60;70,76,82;90,92,94) on one of said laminae (30,32,34) for defining identification information, said radio frequency identification circuit (50;60;70,76,82;90,92,94) comprising an RFID chip (70,94), an antenna (62; 72) deposited on said third flexible polymer lamina and encapsulated between said first and second flexible polymer laminae (30, 34), and a connection (76,82;92,96) between the radio frequency identification circuit (50;60;70,76,82;90,92,94) and the antenna (62; 72) for applying a radio frequency signal bearing said identification information to said antenna (62; 72), said antenna (62; 72) and/or said connection (76,82;92,96) being of conductive ink deposited on said third flexible polymer lamina, said first and second flexible polymer laminae (30, 34) being secured to each other to encapsulate said third flexible polymer lamina, said radio frequency identification circuit (50;60;70,76,82;90,92,94), said antenna (62; 72) and said connection (76, 82; 92, 96). an RFID chip (70,94), an antenna (62; 72) deposited on said third flexible polymer lamina and encapsulated between said first and second flexible polymer laminae (30, 34), and a connection (76,82;92,96) between the radio frequency identification circuit (50;60;70,76,82;90,92,94) and the antenna (62; 72) for applying a radio frequency signal bearing said identification information to said antenna (62; 72), said antenna (62; 72) and/or said connection (76,82;92,96) being of conductive ink deposited on said third flexible polymer lamina, said first and second flexible polymer laminae (30, 34) being secured to each other to encapsulate said third flexible polymer lamina, said radio frequency identification circuit (50;60;70,76,82;90,92,94), said antenna (62; 72) and said connection (76, 82; 92, 96).