Includes cup sleeve: Clear Glass Water Bottle comes with a cup sleeve to provide extra protection and insulation to prevent burning your hands; and the water bottle's compact and lightweight design makes it easy to take with you, whether you're at the gym, the office, or out and about. Material and capacity: Made from borosilicate glass, Tea Infuser Bottle is thermal shock resistant and safe for hot and cold drinks. The water bottle has a capacity of 450ml/15oz, which can hold a large amount of liquid to keep you hydrated throughout the day. Multi-purpose: Glass Tea Infuser Bottle is perfect for carrying a variety of beverages, including water, juice, and tea. The included tea maker lets you enjoy freshly brewed tea wherever you go. It is perfect for camping, hiking, travel, yoga, kitchen, home, office and school Leak-proof design: Tea Infuser Bottle adopts a leak-proof mirror lid design, which ensures that you can keep your drink safely inside the bottle during your travels while also retaining the beauty of the cup. Tea infuser: The wide-mouth opening has a built-in tea infuser. Whether it is filled with fruit tea or drinks, it can easily filter out the residue and make drinking tea convenient. The wide-mouth design can easily fill the bottle with ice cubes, fruits or tea bags, and makes cleaning easier. Becomes a piece of cake.