The Stanley Classic (1.1QT) Vacuum Bottle is made with high quality insulation that keeps liquids hot, or cold drinks cool, for up to 24 hours. Made with BPA-free materials, so liquids of any temperature are safe to consume. Constructed with rust-proof 18/8 stainless steel. The thermos is designed with a leak-resistant lid, so you can put it in your backpack without worrying about any spills. The wide mouth of the thermos helps with easy pouring into the lid that doubles as an eight-ounce cup.