This bottle rolls like you do; cool, stylish, and surprisingly tough.   Nalgene’s  Everyday line is made of Eastman Tritan™ copolyester, and is BPA Free Dishwasher safe (top rack only) Just make sure the cap does not touch the heating element Everyday bottles have superior impact resistance and are suitable for both warm and cold beverages Convenient loop-top design means you\'ll never lose the lid Narrow mouth is easy to drink from Marked with millilitres and ounces for easy measurement Colours - Slate is a Blue Colour, Grey is Grey