The band sits level around your ribcage and does not ride up
You can fit only two fingers under the band comfortably
The center gore lies flat against your chest
The cups fully contain your breasts with no spilling over
The cups have no wrinkling, gaping, or empty space
The underwire, if present, sits around the breast tissue and does not poke
The straps stay in place without digging into your shoulders
The straps do not slip off your shoulders
The bra feels supportive without causing pain or pressure
You can breathe comfortably while wearing it
You can raise your arms without the bra shifting too much
The back band stays parallel to the floor
There is no pinching, chafing, or red marks after wearing it
The bra feels secure during normal movement
The size feels comfortable on the loosest hook when new