Also used to refer to people or styles from the past; when copied, general impression of others upon seeing them is "classy", a reference to all things classic or that have class.
1. She was the epitome of class in the way she carried and presented herself.
2. They all agreed that the man who paid unwavering attention to his escort and stayed by her side all night had an unprecedented amount of class.
3. Audrey Hepburn.