The local landfill will be thankful when you upgrade from disposable bottles - this one holds 25-ounce and is made of durable, shatterproof tritan. the surface is extremely clear and won't crack or craze, so it's easy to see the beverage inside. The molded shape of the bottle is easy for small hands to hold, and the wide mouth is large enough to fit ice cubes. It's small enough to fit in lunch bags and most car cup holders, so kids can take their healthy hydration wherever they go, with help from the carrying loop built into the lid. The easy-open, flip-up spout is durable against biting, with a vent for continuous liquid flow, and when it's closed, the bottle is silicone sealed, leak-proof and watertight. Detach the flexible straw for easy cleaning - everything is both top rack dishwasher safe and BPA free. Do not microwave. Recommended for children ages 3+.