I hope you answer resoundingly YES.
Decades ago, when bras were in mainstream use but the sizing depth hadn’t developed, the back band would increase to accommodate cup size. Jayne Mansfield is noted as small as 34D and as big as 40DDD. We know she probably never had a rib cage even close to 40 inches around.
We receive calls and visit with clients that still hold on to this sizing system – nothing beyond a D cup and instead they erroneously purchase a bra with a wider and wider back band to make room for the volume of the breast.
In the myriad of women we have fit in bras (we don’t sell bras but we used to have a personal bra shopping service), none of them were fit in a bra over 38 inches in the band. Although they would come in wearing a 40+ band. Most women we fit are size 32-34, with G cup being the most common. And they wear our W size range, well-endowed, the smaller bust proportion.
30HH is the smallest back/largest cup combination I personally have fit. I myself have always been a 34. Thirty pounds lighter and now. When I’m lifting weights and my back muscles become more prominent, sometimes I am 36 back band. Rib cage measurement isn’t necessarily ‘in-line’ size wise with your body. Our 30HH client has a medium frame, her shoulders and hips are size 8-10.
What about you? What is the back band size of your bra? Other than having your epiphany (hopefully you’ve had one) that you felt better and had greater uplift in a more snug back band, does that band size fluctuate?










