A smaller version of Nalgene's most popular bottle. The attached loop-top never gets lost and screws on and off easily. Printed graduations let you keep track of your hydration.BPA-freeHigh impact resistanceResistant to stainingWon't retain odorsWithstands sub-freezing to boiling temperaturesDishwasher safe away from the heating elementMax temperature: 100 degrees Celsius/212 degrees FahrenheitMin temperature: -40 degrees Celsius/-40 degrees Fahrenheit