Another common type of wristband is the loops of plastic or tyvek that are placed around the wrist for identification purposes (demonstrating the wearers authorization to be at a venue, for example).
13.56MHz. RFID Plastic Wrist Band Tag, Mifare1 S50

Type: Contactless Read/Write
Operating Frequency: 13.56 MHz.
Capacity: 1Kbit
Common Usage: Heathcare, Security, Access control
Standard Deployment: Ticketing, Hospital Heathcare
Tested Read Range: 2.5 ~10 cm
Multi-Detection: No
Size: 34 x 293 x 13 mm
Material: PVC or Paper
Color: Allow user to select
Weight: 1g ± 0.5 g
Compliance: Mifare1 S50
Regulatory Specifications: ISO/IEC 14443-A
Operating Specifications: Waterproof and dustproof
Resistance to immersion in salt water, alcohol, oil, 10% HCL,
Ammonia =
Shock – Dependant on packaging
Vibration – Dependant on packaging
Temperature – Storage –40°C to 85°C
- Operating -25°C to 70°C
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13.56MHz. RFID Plastic/Silicon Wrist Band Tag, Mifare1 S50
Type: Contactless Read/Write
Capacity: 1Kbit
Operating Frequency: 13.56 MHz.
Standard Deployment: Access control, Healthcare, etc.
Tested Read Range: 3~50cm, varying on the reader used
Size: ?65mm ?74mm
Material: Soft Silicon
Color: Black, White, Red, etc
Features Waterproof, dustproof, and High temperature Resistance
Weight: 5g
IC used: MF1 S50( available in other types)
Compliance: ISO 14443A
Operating Temperature: -40°C to 90°C, Stand up 200°C for 6hrs
Storage Temperature: -40°C to 85°C