Being one of the more stylish sporting events of the year, it is important to know what attire is acceptable when attending the Kentucky Derby.

Business casual is required for the Jockey Club and Finish Line suites, Aristides & Stakes rooms, and the Turf Club.

Business casual is best described as the following:

* Jackets and Blazers
* Vests, collard shirts, and sweaters
* Dresses
* Pantsuits
* Slacks

Denim, jeans, shorts and tennis shoes are not allowed.

Check out what celebrities were wearing at the Derby.