Heesung Quality Double Wall Thermos Flask Vacuum Insulated Stainless Steel Flask With Red PU Sleeve Classic Design & BPA Free 17oz Beverage Bottle HEESUNG vacuum insulation technology locks in temperature to preserve flavor and freshness to keep beverages hot for 12 hours or cold for 24 Durable Stainless steel interior and exterior keep bottle cool to touch with hot liquids and sweat proof with cold liquids ,High Quality Red faux leather sleeve Wraped ,Touch feeling is good and dirt-resistant also anti-Sweat .the Sleeve easy for clean . Built-in stainless steel/plastic cup lets you enjoy your beverage anywhere ,lid comes apart for easy cleaning, 500ml capacity Push button valve integrated into stopper for easy pouring ,silicon gasket seal ensure no leaks ,17oz capacity & BPA free Light and compact design for effortless transport and storage.