Nalgene Tritan Wide Mouth BPA-Free Water Bottle Nalgene's bestselling water bottle for more than 20 years Made of BPA-free Eastman Tritan co-polyester with superior impact resistance; dishwasher safe on top rack Suitable for both warm and cold beverages (-40 to 212 degrees Fahrenheit); wide mouth makes cleaning and adding ice cubes easy 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 Nalgene's bestselling water bottle for more than 20 years Suitable for both warm and cold beverages (-40 to 212 degrees Fahrenheit); wide mouth makes cleaning and adding ice cubes easy 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