La Femme 31501 tulle prom dresses are offered in Light Periwinkle, Sage. $398 is the Formal Approach best price guarantee for style 31501 by La Femme. Shop with confidence, Formal Approach is an authorized La Femme prom dress store. La Femme 31501 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14.