La Femme 31518 sequin prom dresses are offered in Navy. $398 is the Formal Approach best price guarantee for style 31518 by La Femme. Shop with confidence, Formal Approach is an authorized La Femme prom dress store. La Femme 31518 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14, 16.