A heavier bust that sits lower, often below the bust crease, with nipples pointing downward, Or, the bust is much larger than the band.

A larger gap between the breasts, creating more space at the center. Or, breasts naturally point outward, with nipples angled to the sides.

Softer bust tissue with less fullness at the top than at the bottom.

One bust is significantly sized different than the other. Everyone one has some degree of asymmetry.