Hello Kitty Funtainer Thermos for Cold Liquids, 12 oz THERMOS vacuum insulation technology for maximum temperature retention, not for use with hot liquids Durable stainless steel interior and exterior, made from BPA free materials Hygienic push button lid with pop-up straw and integrated carry handle Keeps cold 12 hours, 12 ounce capacity; hand washing recommended (COLD ONLY) Capacity: 12oz/355mL