

Stylin' to the Oldies.
Most, if not all, of the venues I've ever danced at have casual dress codes. I'm not sure how they wore coats and ties "back in the day", but I'm very happy that it's casual now because dancing generates body heat — winter or summer. Although cotton shirts breath, I prefer wearing poly/cotton blend bowling shirts or shirts made with a wicking material — like runner's shirts.
I don't have as much of a concern over the type of pants I wear. I tried shorts in the summer, but they just don't look "right", so I usually wear jeans or khaki pants.
I'm not "fashion-aware" in regards to what would be appropriate for women to wear, so I'm hesitant to offer suggestions. Comfort should ALWAYS be the deciding factor. Although, I do strongly suggest that women wear flats, as opposed to ANY type of heeled shoes.