Tyvek® is a registered trademark of Dupont for a synthetic material that is manufactured in sheets .It made of high-density polyethylene fibers and stronger than paper and cheaper than fabric .because they are flexible ,strong ,lightweight and resistant to water and abrasion we always use Tyvek® paper to produce wristband .We can make 13.56mhz or 860-960mhz RFID wet inlay adhesive the backside of Tyvek® and widely use for festival & events applications , payment and member identification . You can customize logo print , number print and barcode ,etc.