The exterior of this Stainless Steel travel mugs has an eye-catching diamond pattern around the middle. It is double walled with vacuum insulation and feature a matching colored/clear Acrylic snap on straw lid with twisting closure. Just twist the lid to hide/reveal the included straw. The sipper hole on the lid can also be used for drinking. Holds up to 600 ml. (20 oz.). Stays hot up to 5 hours. Individually retail packaged.