The local landfill will be thankful when you upgrade from disposable bottles this one holds 25 ounces and is made of durable Tritan(TM). 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 to hold, and the wide mouth is large enough to fit ice cubes. It's small enough to fit in most car cup holders, so you can take healthy hydration wherever you 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 to help prevent leaks. Detach the flexible straw for easy cleaning everything is both top rack dishwasher safe and BPA free. Do not microwave. Recommended for children ages 7+.