"Flattering" isn't one silhouette — it depends on what you actually want to emphasize or ease up on, which varies person to person, not by a single body-type chart.
Quick answer
For waist definition, the V-Neck Long-Sleeve Dress's elastic waist and the High-Waist Maxi Dress both build shape in. For a straight, easy line with no waist emphasis, the A-line and shirt-dress styles skip that shaping entirely. For more coverage through the arms, any of the long-sleeve options; for more coverage through the leg, the maxi-length styles.
If you want waist definition
The V-Neck Long-Sleeve Dress's elastic waist and the High-Waist Maxi Dress both create a visible waistline through construction, not just styling — useful if that's a priority for you.
If you prefer a straight, unstructured line
A-line styles like the Zip-Front A-Line Maxi Dress and shirt-dress styles like the Spring Summer Notch Lapel Dress skip waist shaping in favor of a looser, more relaxed silhouette throughout.
If coverage is the priority
Long sleeves (V-Neck Long-Sleeve, High-Waist Maxi) and maxi length (several current styles) both add coverage without requiring a specific fit adjustment — pick based on which coverage matters more to you, arms or legs.
If you want a fitted, body-following cut
The Sexy Off-Shoulder Fitted Dress follows the body's line more closely than the A-line or shirt-dress options — the right pick if a closer fit is what you're after rather than avoiding.
FAQ
Is there one dress that flatters everyone?
No — that's the point of matching silhouette to your own priorities rather than following a single universal recommendation.
How do I know my size if I'm between two?
Size up for the more fitted, structured styles; either size can work for the looser A-line and shirt-dress cuts.
The bottom line
Match the silhouette to what you actually want to emphasize, not a generic body-type rule. Browse the full Dresses collection to compare all current styles.