Whether you like chilled water or hot coffee - the Zojirushi stainless steel mug keeps beverages hot or cold wherever you go. The slim design of the mug occupies minimum space while maximizing capacity. Endowed with high-quality stainless steel and vacuum insulation technology, this black colored lightweight stainless steel mug keeps inside temperature constant for hours. And with one touch pour through stopper and a lid - the stainless steel mug is designed to drink directly out of the mug. This stylish, compact, practical stainless steel mug is handy and versatile enough for you to take it to work, school or play.