The term “petite” is commonly misunderstood. Many people believe that petite = short and slim and skinny. But this is far from the truth.
Weight has nothing to do with being petite. It’s actually your HEIGHT that determines if you fall into the “petite” category. In fashion/clothing, petite is a standard clothing size designed to fit women of shorter height, typically 5’4″ or shorter.
“Regular” clothing is designed for women who are at least 5’5″ tall which means regular size clothing will not properly fit women who are shorter than this.
Fit is EVERYTHING. If something doesn’t fit you properly, it’s not going to do you any favors.
I found this video from The Petite Shop that helps explain it better: