If you are tall and thin, the combination of a calf length dress and ankle straps looks amazing. This cuts out most of the population of women, but Keira Knightley looked so forest green chic last night on the Jay Leno show in her Burberry Prorsum lace dress and nude ankle strap pumps, I had to share. The few lessons to learn from this look is the shape. When choosing a mid-calf length dress, it is important to note, the close-to-the-body silhouette does wonders against the shortening aspect of the length and the flared hem is a wonderful addition. Between the ankle straps and the awkward length, the calves lose that curve we love so much. By adding a flare to the calf length hem, we create shape to the few inches of skinny legs that are exposed. I would sport this look to a dressy bridal shower, a wedding or a holiday party this fall.