This 22 fl oz water bottle is made with BPA free durable Tritan plastic and includes an EZ-Freeze freezer stick to keep drinks colder, longer. . HYDRATE HAPPY: Show off your personal style with your favorite color water bottle. Made with BPA free durable Tritan, this water bottle holds 22 fl ounces of water. COLDER, LONGER: The included EZ-Freeze freezer stick twists and locks into the bottom of the cap to keep drinks colder, longer. Filled with non-toxic freezer gel. The cap locks when closed for a spill proof closure.