Does back size affect cup size? September 13, 2022December 28, 2023BRA 0 The answer is yes. As the Bra band size (the numbers) increases so does the cup as it naturally gets wider to sit properly on the band.Related Posts:How Your Bra Cup Size Can Affect Your Comfort andHow Your Bra Cup Size Can Affect Your Comfort and…Breaking Down the Best Options for Plus Size Women:…