Features. Product Type - Nalgene Tritan. Size - .6 oz.. Color - Olive. Durable and impact resistant. Leak proof. Dishwasher safe. Wont retain odors. Made With High Quality Product. 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 2.2 degrees Fahrenheit), wide mouth makes cleaning and adding ice cubes easy. Opening accommodates most water filters, marked with milliliters and ounces for easy measurement.