The Nalgene Sustain product line is made from Tritan Renew, a material derived from 50% certified recycled content, which helps offset the use of fossil fuels and lowers greenhouse gas emissions. This Nalgene water bottle is completely leak-proof, constructed from virtually indestructible, BPA-free Tritan, and is easy to clean. It is dishwasher safe on the top rack. Perfect for your everyday adventures, take this Nalgene bottle to the gym, office, camping, exploring, and anywhere in between. It is suitable for both warm and cold beverages, with a temperature range of -40 to 212 degrees Fahrenheit. The wide mouth design makes cleaning and adding ice cubes simple. Free of BPA, BPS, and phthalates, the opening accommodates most water filters. The bottle is marked with milliliters and ounces for easy measurement.