Blue-Green Dress
This dress's color blocking creates slender vertical planes that emphasize length over width. A black empire waist shrinks your waistline like a visual corset, but unlike those unpleasant contraptions, it's got elastic smocking in the back for breathing room.
JCPenney Dress

American Living Dress
This asymmetrical sleeveless V-neck style cinches at the waist, but ruching around the stomach covers up any extra weight around your midsection.
BCBG Dress

Dot Print Dress
O's creative director, Adam Glassman, loves the combination of blue and black—and this pairing, with dark dots converging strategically in the center, gives the impression of a tiny waist. Bonus: The subtly-gathered skirt provides extra hip and thigh coverage.
Eloquii Dress

Green Dress
We love a wrap dress, and we especially like one that isn't a wrap at all, which means the flap stays closed all day. What makes this even better? Cap sleeves that won't cut into your arms and a high ruched waistline that takes attention away from your tummy.

Oval-Dot Dress
The print on this dress darkens toward the center, pulling the eyes away from the thighs. The voluminous inverted pleats create the impression of a teeny-tiny wasp waist.
ModCloth Dress

Body Con Dress
On chunky-feeling days, the last thing most of us want is a form-fitting dress with horizontal stripes, but when you put on this cotton-poly-Spandex number, the black lightning bolts come into focus, the white and black lines recede and suddenly you've got an irresistible (and slimmer) hourglass figure.

NUE by Shani Dress
The intense red waist placket pops against a navy background, grabbing attention, while bright inserts at the top remind people that they should really be looking at your lovely face. Plus, there's a built-in body shaper so you appear even trimmer.