Any comfortable clothing you can dance in.  Most come in business-casual attire.  More importantly, please bring a CLEAN pair of shoes to change into for dance class.  Suede-sole ballroom shoes are best, or any dress shoes with a leather-sole.  Tennis shoes tend to grip the floor making it less easy to spin or turn. 

The Retro Ballroom is an authorized dealer of Fine Dancesport Ballroom and Latin shoes.  If we don't have your size and style in stock, they ship in 2-3 business days!