La Femme 31505 satin prom dresses are offered in Lavender, Nude, Silver, Teal. $398 is the Formal Approach best price guarantee for style 31505 by La Femme. Shop with confidence, Formal Approach is an authorized La Femme prom dress store. La Femme 31505 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20.