The phrase "flattering shape" means a clothing design that makes someone's body look good or attractive. It highlights their best features and hides any flaws.
Sentences with «flattering shape»
I put paper up on the walls all around my studio, and eventually, big flat shapes of color started to emerge. (paintingperceptions.com)
I'm also not sure it's not the most flattering shape on me. (itskristin.com)
These ray - bans are the most flattering shape ever! (thesilksneaker.com)