La Femme 31151 net prom dresses are offered in Black, Dark Berry, Dark Emerald, Royal Blue. $318 is the Formal Approach best price guarantee for style 31151 by La Femme. Shop with confidence, Formal Approach is an authorized La Femme prom dress store. La Femme Fashion 31151 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14, 16.