Lanqniqi Stainless Steel Vacuum Insulated Drink Bottle Thermos Travel Mug Cup with Tape 28-Ounce Promotions Now------Stainless steel vacuum insulation keeps water hot for 24 hours, or cold for 6 hours. Unbreakable stainless steel interior and exterior Super large 800ml/28-Ounce capacity are excellent for your outdoor activities Each bottle comes with 2 kinds of removable cup lid just as the picture shows double Lid and cup is made out of BPA free plastic -- can be taking apart for easy cleaning.