Elegant bottle water, stain-free, odor-free, clean-tasting, 100% Borosilicate Glass with real wood friction-fit lid and wood straw Colorful silicone sleeves provide a solid grip and make it easy for all ages to identify their own glasses, also protective silicone sleeves make the glass perfect for outdoor use Glass water bottles can be used to fill many kinds of liquids, such as cold/hot water, milk, juices, beverages, etc. All parts are BPA/BPS-free. The tumbler except the cap is top-rack dishwasher-safe. Do not microwave. Do not freeze.