Nalgene Tritan Wide Mouth BPA-Free Water Bottle, 1-Quart Suitable for both warm and cold beverages (-40 to 212 degrees Fahrenheit); wide mouth makes cleaning and adding ice cubes easy Made of BPA-free Eastman Tritan co-polyester with superior impact resistance; dishwasher safe on top rack Opening accommodates most water filters; marked with milliliters and ounces for easy measurement Made in the USA and guaranteed for the life of the product Glows Green - 2 Count