This highly durable all-stainless vacuum bottle/mug offers superior thermal retention. Through its unique slim body it is designed to occupy minimal space. Features include a flip-open lid with a lock, and a stick-resistant polished stainless interior. At last an option that actually keeps your coffee hot and is spill-proof. This Stainless Steel Vacuum Bottles are a great way to transport hot or cold beverages wherever you go; on your way to work, at work on a picnic, hiking, soccer practice, golf, etc.