La Femme 31920 beaded swim jersey prom dresses are offered in Black, Royal Blue. $438 is the Formal Approach best price guarantee for style 31920 by La Femme. Shop with confidence, Formal Approach is an authorized La Femme prom dress store. La Femme Fashion 31920 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12.