From http://www.sewaholicpatterns.com/:
"The Lonsdale Dress is the perfect summer sundress. It’s fitted on top with a flared skirt, with your choice of a flattering knee-length or dramatic, full-length dress.
This dress is designed with a pear-shaped figure in mind. Knotted bodice and halter neckline draw attention to the shoulders, while the narrow waistband highlights the waist. The skirt is softly flared from the waistline to create a flattering silhouette. Pockets in the skirt are easy to sew and add a practical touch to this pretty dress. Sizing is proportioned for a pear-shaped figure: smaller bust and waist, larger hips.
The dress neckline may look complicated, but it’s simple to construct! Change the look by tying a half-knot or a full knot in the front. Shoulder straps are completely adjustable, tying in a bow at centre back. Just untie the bow and pull the straps tighter as needed. Bodice is self-lined, skirt is unlined, with a centre back zipper closure.
The dress you’ll live in, all summer long!"