Cryo-Tags microplates are flexible polyolefin labels that withstand conventional and cryogenic storage conditions (vapor and liquid phase nitrogen storage at -196°C). Labels will resist water soaking for at least 24 hours at room temperature and water vapor (100% relative humidity) at 35°C for at least 24 hours. Labels are specially top-coated to readily accept laser printing. Heat-resistant, stay-flat sheets will not jam laser printers.