Hello Carolina,
In order to meet your question appropriately I need to know if the dress you are interested in should be excluded from the context of the rest of the dances pertaining to the American Rhythm group. If we are talking about a Bolero dress per se, and considering the romantic nature of that dance, Id recommend more tender / see through fabric, floating around the core and highlighting the motion spectrum. Usage of mild , lighter, creamy colors is preferable.
Please, feel free to contact me at ivo@danceallure.com should you have any questions and/or need of advise.